Effect of ultrafine-grained titanium surfaces on adhesion of bacteria (2009)
Truong, Vi Khanh, Rundell, Stuart, Lapovok, R., Estrin, Yuri, Wang, James Y., Berndt, Christopher C., ...
The influence of the ultrafine crystallinity of commercial purity grade 2 (as-received) titanium and titanium modified by equal channel angular pressing (modified titanium) on bacterial attachment...
Effect of ultrafine-grained titanium surfaces on adhesion of bacteria (2009)
Truong, Vi Khanh, Rundell, Stuart, Lapovok, R., Estrin, Yuri, Wang, James, Berndt, Christopher C., ...
The influence of the ultrafine crystallinity of commercial purity grade 2 (as-received) titanium and titanium modified by equal channel angular pressing (modified titanium) on bacterial attachment...
Kanta, Abdoul-Fatah, Montavon, Ghislain, Vardelle, Michel, Planche, Marie-Pierre, Berndt, Christopher C., Coddet, Christian
The plasma-sprayed coating architecture and in-service properties are derived from an amalgamation of intrinsic and extrinsic spray parameters. These parameters are interrelated; following mostly...
Kanta, Abdoul-Fatah, Montavon, Ghislain, Vardelle, Michel, Planche, Marie-Pierre, Berndt, Christopher C., Coddet, Christian
The plasma-sprayed coating architecture and in-service properties are derived from an amalgamation of intrinsic and extrinsic spray parameters. These parameters are interrelated; following mostly...
Mechanical property variations within thermal barrier coatings (2007)
Racek, Ondrej, Berndt, Christopher C.
The mechanical properties of nanostructured yttria stabilized zirconia (YSZ) coatings were investigated using an instrumented indentation technique. Coatings were produced using the Triple-Torch...
Fatigue and deformation of HVOF sprayed WC-Co coatings and hard chrome plating (2007)
Ibrahim, A., Berndt, Christopher C.
A challenge facing the finishing industry is to replace chrome plating since this technology has negative environmental and health effects. In the case of tungsten carbide and chrome carbide...
Materials properties of barricade bricks for mining applications (2007)
Berndt, Christopher C., Rankine, Kirralee J., Sivakugan, Nagaratnam
Barricade bricks are fundamental to the safe operation of a mining site. Past failures have lead to loss of life and reduced mine efficiency or even shut down. The fundamental material property that...
Ibrahim, A., Lima, Rogerio S., Berndt, Christopher C., Marple, Basil R.
Nanostructured and conventional titania (TiO2) coatings were thermally sprayed using air plasma spray (APS) and high velocity oxy-fuel (HVOF) processes. The fatigue and mechanical properties of these...
One way to pick 'low-hanging fruit' is to chop the tree down! (2007)
Abstract not available.
Mechanical property variations within thermal barrier coatings (2007)
Racek, Ondrej, Berndt, Christopher C.
The mechanical properties of nanostructured yttria stabilized zirconia (YSZ) coatings were investigated using an instrumented indentation technique. Coatings were produced using the Triple-Torch...
Fatigue and deformation of HVOF sprayed WC-Co coatings and hard chrome plating (2007)
Ibrahim, A., Berndt, Christopher C.
A challenge facing the finishing industry is to replace chrome plating since this technology has negative environmental and health effects. In the case of tungsten carbide and chrome carbide...
Materials properties of barricade bricks for mining applications (2007)
Berndt, Christopher C., Rankine, Kirralee J., Sivakugan, Nagaratnam
Barricade bricks are fundamental to the safe operation of a mining site. Past failures have lead to loss of life and reduced mine efficiency or even shut down. The fundamental material property that...
Ibrahim, A., Lima, Rogerio S., Berndt, Christopher C., Marple, Basil R.
Nanostructured and conventional titania (TiO2) coatings were thermally sprayed using air plasma spray (APS) and high velocity oxy-fuel (HVOF) processes. The fatigue and mechanical properties of these...
One way to pick 'low-hanging fruit' is to chop the tree down! (2007)
Abstract not available.
Thermal spray: the best thing since sliced bread? (2007)
This article discusses thermal spray technology. Thermal spray's microstructure sometimes provokes skepticism about the suitability of thermal spray to a particular application. Questions about such...
The end of the beginning: now let's make a real effort! (2007)
Abstract not available.
Lins, Vanessa F. C., Branco, Jose R. T., Diniz, Flavio R. C., Brogan, J. C., Berndt, Christopher C.
Polymer consumption is increasing and the recycling rate is 30-40 wt.%. Thus any process or application that uses recycled plastic residue will be looked upon with favor. It has been demonstrated...
Thermal spray: the best thing since sliced bread? (2007)
This article discusses thermal spray technology. Thermal spray's microstructure sometimes provokes skepticism about the suitability of thermal spray to a particular application. Questions about such...
The end of the beginning: now let's make a real effort! (2007)
Abstract not available.
Lins, Vanessa F. C., Branco, José R. T., Diniz, Flávio R. C., Brogan, J. C., Berndt, Christopher C.
Polymer consumption is increasing and the recycling rate is 30-40 wt.%. Thus any process or application that uses recycled plastic residue will be looked upon with favor. It has been demonstrated...
Design and optimization of biopolyester bagasse fiber composites (2007)
Hodzic, Alma, Coakley, Richard, Curro, Ray, Berndt, Christopher C., Shanks, Robert A.
Bagasse fiber, a by-product of the sugar making process, maintains a coherent xylem structure and can offer mechanical reinforcement to composite materials. Biopolyester bagasse composites were...
Bagasse fibre for sustainable manufacturing (2007)
Berndt, Christopher C., Hodzic, Alma
Processing sugarcane produces one third of matted cellulose fibre residue known as bagasse. Several millions of tons of bagasse are produced each year in the major cane sugar growing countries and...
Lins, Vanessa F.C., Branco, José R.T., Diniz, Flávio R.C., Brogan, J.C., Berndt, Christopher C.
Polymer consumption is increasing and the recycling rate is 30–40 wt.%. Thus any process or application that uses recycled plastic residue will be looked upon with favor. It has been demonstrated...
Mechanical property variations within thermal barrier coatings (2007)
Racek, Ondrej, Berndt, Christopher C.
The mechanical properties of nanostructured yttria stabilized zirconia (YSZ) coatings were investigated using an instrumented indentation technique. Coatings were produced using the Triple-Torch...
Fatigue and deformation of HVOF sprayed WC-Co coatings and hard chrome plating (2007)
Ibrahim, A., Berndt, Christopher C.
A challenge facing the finishing industry is to replace chrome plating since this technology has negative environmental and health effects. In the case of tungsten carbide and chrome carbide...
Materials properties of barricade bricks for mining applications (2007)
Berndt, Christopher C., Rankine, Kirralee J., Sivakugan, Nagaratnam
Barricade bricks are fundamental to the safe operation of a mining site. Past failures have lead to loss of life and reduced mine efficiency or even shut down. The fundamental material property that...
Ibrahim, A., Lima, Rogerio S., Berndt, Christopher C., Marple, Basil R.
Nanostructured and conventional titania (TiO2) coatings were thermally sprayed using air plasma spray (APS) and high velocity oxy-fuel (HVOF) processes. The fatigue and mechanical properties of these...
One way to pick 'low-hanging fruit' is to chop the tree down! (2007)
Abstract not available.
The end of the beginning: now let's make a real effort! (2007)
Abstract not available.
Lins, Vanessa F. C., Branco, Jose R. T., Diniz, Flavio R. C., Brogan, J. C., Berndt, Christopher C.
Polymer consumption is increasing and the recycling rate is 30-40 wt.%. Thus any process or application that uses recycled plastic residue will be looked upon with favor. It has been demonstrated...
Thermal spray: the best thing since sliced bread? (2007)
This article discusses thermal spray technology. Thermal spray's microstructure sometimes provokes skepticism about the suitability of thermal spray to a particular application. Questions about such...
Materials properties of barricade bricks for mining applications (2007)
Berndt, Christopher C., Rankine, Kirralee J., Sivakugan, Nagaratnam
Barricade bricks are fundamental to the safe operation of a mining site. Past failures have lead to loss of life and reduced mine efficiency or even shut down. The fundamental material property that...
Thermal spray: preserving 100 years of technology (2006)
Berndt, Christopher C., Montavon, Ghislain
Abstract not available.
Nanostructured and conventional YSZ coatings deposited using APS and TTPR techniques (2006)
Racek, Ondrej, Berndt, Christopher C., Guru, D. N., Heberlein, Joachim V. R.
Multilayer thermal barrier coatings are candidate materials for high temperature applications that are novel because they employ a strain accommodating interlayer. Plasma sprayed coatings of...
Campbell, G. R., Leong, Yee Kwong, Berndt, Christopher C., Liow, J. L.
Ammonium phosphate slurries are produced from impure phosphoric acid that contains Fe(III), Al(III) and Mg(II) ions. The insolubility of these metal ions and the onset of solid formation determined...
Image-based extended finite element modeling of thermal barrier coatings (2006)
Michlik, Petr, Berndt, Christopher C.
Further advances in Thermal Barrier Coating (TBC) design are linked with the evolution of numerical models for TBCs. The present paper, therefore, enhances the idea of a currently available FEM...
Thermal spray: preserving 100 years of technology (2006)
Berndt, Christopher C., Montavon, Ghislain
Abstract not available.
Nanostructured and conventional YSZ coatings deposited using APS and TTPR techniques (2006)
Racek, Ondrej, Berndt, Christopher C., Guru, D. N., Heberlein, Joachim V. R.
Multilayer thermal barrier coatings are candidate materials for high temperature applications that are novel because they employ a strain accommodating interlayer. Plasma sprayed coatings of...
Campbell, G. R., Leong, Yee Kwong, Berndt, Christopher C., Liow, J. L.
Ammonium phosphate slurries are produced from impure phosphoric acid that contains Fe(III), Al(III) and Mg(II) ions. The insolubility of these metal ions and the onset of solid formation determined...
Image-based extended finite element modeling of thermal barrier coatings (2006)
Michlik, Petr, Berndt, Christopher C.
Further advances in Thermal Barrier Coating (TBC) design are linked with the evolution of numerical models for TBCs. The present paper, therefore, enhances the idea of a currently available FEM...
State of the Society: the birth of opportunity (2006)
Abstract not available.
Thermal spray: preserving 100 years of technology (2006)
Berndt, Christopher C., Montavon, Ghislain
Abstract not available.
State of the Society: the birth of opportunity (2006)
Abstract not available.
Nanostructured and conventional YSZ coatings deposited using APS and TTPR techniques (2006)
Racek, Ondrej, Berndt, Christopher C., Guru, D. N., Heberlein, Joachim V. R.
Multilayer thermal barrier coatings are candidate materials for high temperature applications that are novel because they employ a strain accommodating interlayer. Plasma sprayed coatings of...
Campbell, G. R., Leong, Yee Kwong, Berndt, Christopher C., Liow, J. L.
Ammonium phosphate slurries are produced from impure phosphoric acid that contains Fe(III), Al(III) and Mg(II) ions. The insolubility of these metal ions and the onset of solid formation determined...
Image-based extended finite element modeling of thermal barrier coatings (2006)
Michlik, Petr, Berndt, Christopher C.
Further advances in Thermal Barrier Coating (TBC) design are linked with the evolution of numerical models for TBCs. The present paper, therefore, enhances the idea of a currently available FEM...
Sugar cane bagasse fibre for sustainable manufacturing: an overview of applications (2006)
Shu, Li, Berndt, Christopher C., Hodzic, Alma
Processing sugar cane generally produces one third of matted cellulose fibre residue known as bagasse, which may be used as an alternative natural resource for sustainable energy production. This...
Nanostructured and conventional YSZ coatings deposited using APS and TTPR techniques (2006)
Racek, O., Berndt, Christopher C., Guru, D.N., Heberlein, J.
Multilayer thermal barrier coatings are candidate materials for high temperature applications that are novel because they employ a strain accommodating interlayer. Plasma sprayed coatings of...
An image-based extended finite element modeling of thermal barrier coatings (2006)
Michlik, P., Berndt, Christopher C.
Further advances in Thermal Barrier Coating (TBC) design are linked with the evolution of numerical models for TBCs. The present paper, therefore, enhances the idea of a currently available FEM...
Thermal spray: preserving 100 years of technology (2006)
Berndt, Christopher C., Montavon, Ghislain
The Schoop Patent that concerns the origins of thermal spray (TS) can be traced back to 1912 (for example: “Metal Plating with the Air Brush,” Scientific American, Vol 1, 1913, p 346). A...
Solid particle erosion of plasma sprayed ceramic coatings (2004)
Branco,José Roberto Tavares, Gansert,Robert, Sampath,Sanjay, Berndt,Christopher C., Herman,Herbert
Thermal spraying allows the production of overlay protective coatings of a great variety of materials, almost without limitations as to its components, phases and constituents on a range of...
Guru, D. N., Palacio, Manuel L B, Mook, William M., Chambers, M. D., Heberlein, Joachim V. R., Gerberich, William W., ...
Applying an environmental barrier coating (EBC) and a thermal barrier coating (TBC) on the next generation gas turbine structural materials such as silicon carbide matrix composites will lead to...
Mechanical and erosion properties of CaCO3-EMAA thermal sprayed coatings (2004)
Yan, Fengyuan Yuan, Gross, Karlis A., Simon, George P., Berndt, Christopher C.
Polymer-ceramic composite coatings manufactured from calcium carbonate and ethylene-methacrylic acid copolymer (EMAA) were prepared via a thermal spray process employing different CaCO3 filler sizes...
Fatigue and mechanical properties of nanostructured WC-Co coatings (2004)
Ibrahim, A., Berndt, Christopher C.
Nanostructured materials and nanocomposites have the potential to have a dramatic impact on technological progress in the 21st century. Of great interest, is the outstanding deformation behavior of...
The effect of YSZ microstructure on Young's modulus (2004)
Michlik, Petr, Racek, Ondrej, Berndt, Christopher C.
The mechanical behavior of nanostructured yttria stabilized zirconia (YSZ) thermal spray deposits was examined and compared to conventional zirconia coatings. Young's modulus was measured using...
Guru, D. N., Palacio, Manuel L B, Mook, William M., Chambers, M. D., Heberlein, Joachim V. R., Gerberich, William W., ...
Applying an environmental barrier coating (EBC) and a thermal barrier coating (TBC) on the next generation gas turbine structural materials such as silicon carbide matrix composites will lead to...
Mechanical and erosion properties of CaCO3-EMAA thermal sprayed coatings (2004)
Yan, Fengyuan Yuan, Gross, Karlis A., Simon, George P., Berndt, Christopher C.
Polymer-ceramic composite coatings manufactured from calcium carbonate and ethylene-methacrylic acid copolymer (EMAA) were prepared via a thermal spray process employing different CaCO3 filler sizes...
Fatigue and mechanical properties of nanostructured WC-Co coatings (2004)
Ibrahim, A., Berndt, Christopher C.
Nanostructured materials and nanocomposites have the potential to have a dramatic impact on technological progress in the 21st century. Of great interest, is the outstanding deformation behavior of...
The effect of YSZ microstructure on Young's modulus (2004)
Michlik, Petr, Racek, Ondrej, Berndt, Christopher C.
The mechanical behavior of nanostructured yttria stabilized zirconia (YSZ) thermal spray deposits was examined and compared to conventional zirconia coatings. Young's modulus was measured using...
Guru, D. N., Palacio, Manuel L B, Mook, William M., Chambers, M. D., Heberlein, Joachim V. R., Gerberich, William W., ...
Applying an environmental barrier coating (EBC) and a thermal barrier coating (TBC) on the next generation gas turbine structural materials such as silicon carbide matrix composites will lead to...
Mechanical and erosion properties of CaCO3-EMAA thermal sprayed coatings (2004)
Yan, Fengyuan Yuan, Gross, Karlis A., Simon, George P., Berndt, Christopher C.
Polymer-ceramic composite coatings manufactured from calcium carbonate and ethylene-methacrylic acid copolymer (EMAA) were prepared via a thermal spray process employing different CaCO3 filler sizes...
Fatigue and mechanical properties of nanostructured WC-Co coatings (2004)
Ibrahim, A., Berndt, Christopher C.
Nanostructured materials and nanocomposites have the potential to have a dramatic impact on technological progress in the 21st century. Of great interest, is the outstanding deformation behavior of...
The effect of YSZ microstructure on Young's modulus (2004)
Michlik, Petr, Racek, Ondrej, Berndt, Christopher C.
The mechanical behavior of nanostructured yttria stabilized zirconia (YSZ) thermal spray deposits was examined and compared to conventional zirconia coatings. Young's modulus was measured using...
Allen, Andrew J., Long, Gabrielle G., Ilavsky, Jan, Wallace, Jay S., Berndt, Christopher C., ...
The microstructures of thick plasma-sprayed yttria-stabilized zirconia deposits were discussed. The deposits were studied in a series of Porod small-angle neutron scattering (SANS) and multiple...
Materials Research Society Symposium proceedings: preface (2003)
Berndt, Christopher C., Fischer, Traugott E., Ovid'ko, Ilya A., Skandan, Ganesh, Tsakalakos, Thomas
Abstract not available.
Remesh, K., Yu, S. C. M., Ng, Hong Wah, Berndt, Christopher C.
A three-dimensional computational fluid dynamic (CFD) analysis using Fluent V5.4 was conducted on the in-flight particle behavior during the plasma spraying process with external injection. The spray...
Peel-strength behavior of bilayer thermal-sprayed polymer coatings (2003)
Yan, Fengyuan Yuan, Gross, Karlis A., Simon, George P., Berndt, Christopher C.
We prepared various bilayer polymer coatings of ethylene methacrylic acid (EMAA) copolymer and ionomer by the thermal-spray process under a range of preheat temperatures (PTs) to investigate their...
Sun, Limin, Berndt, Christopher C., Grey, Clare P.
The properties and performance of plasma sprayed hydroxyapatite (Ca10(PO4)6(OH)2, i.e. HA) coatings are closely related to their manufacturing process. The objective of the current study is to...
Allen, Andrew J., Long, Gabrielle G., Ilavsky, Jan, Wallace, Jay S., Berndt, Christopher C., ...
The microstructures of thick plasma-sprayed yttria-stabilized zirconia deposits were discussed. The deposits were studied in a series of Porod small-angle neutron scattering (SANS) and multiple...
Materials Research Society Symposium proceedings: preface (2003)
Berndt, Christopher C., Fischer, Traugott E., Ovid'ko, Ilya A., Skandan, Ganesh, Tsakalakos, Thomas
Abstract not available.
Remesh, K., Yu, S. C. M., Ng, Hong Wah, Berndt, Christopher C.
A three-dimensional computational fluid dynamic (CFD) analysis using Fluent V5.4 was conducted on the in-flight particle behavior during the plasma spraying process with external injection. The spray...
Peel-strength behavior of bilayer thermal-sprayed polymer coatings (2003)
Yan, Fengyuan Yuan, Gross, Karlis A., Simon, George P., Berndt, Christopher C.
We prepared various bilayer polymer coatings of ethylene methacrylic acid (EMAA) copolymer and ionomer by the thermal-spray process under a range of preheat temperatures (PTs) to investigate their...
Sun, Limin, Berndt, Christopher C., Grey, Clare P.
The properties and performance of plasma sprayed hydroxyapatite (Ca10(PO4)6(OH)2, i.e. HA) coatings are closely related to their manufacturing process. The objective of the current study is to...
Allen, Andrew J., Long, Gabrielle G., Ilavsky, Jan, Wallace, Jay S., Berndt, Christopher C., ...
The microstructures of thick plasma-sprayed yttria-stabilized zirconia deposits were discussed. The deposits were studied in a series of Porod small-angle neutron scattering (SANS) and multiple...
Materials Research Society Symposium proceedings: preface (2003)
Berndt, Christopher C., Fischer, Traugott E., Ovid'ko, Ilya A., Skandan, Ganesh, Tsakalakos, Thomas
Abstract not available.
Remesh, K., Yu, S. C. M., Ng, Hong Wah, Berndt, Christopher C.
A three-dimensional computational fluid dynamic (CFD) analysis using Fluent V5.4 was conducted on the in-flight particle behavior during the plasma spraying process with external injection. The spray...
Peel-strength behavior of bilayer thermal-sprayed polymer coatings (2003)
Yan, Fengyuan Yuan, Gross, Karlis A., Simon, George P., Berndt, Christopher C.
We prepared various bilayer polymer coatings of ethylene methacrylic acid (EMAA) copolymer and ionomer by the thermal-spray process under a range of preheat temperatures (PTs) to investigate their...
Sun, Limin, Berndt, Christopher C., Grey, Clare P.
The properties and performance of plasma sprayed hydroxyapatite (Ca10(PO4)6(OH)2, i.e. HA) coatings are closely related to their manufacturing process. The objective of the current study is to...
Abstract not available.
Abstract not available.
Deposition efficiency, mechanical properties and coating roughness in cold-sprayed titanium (2002)
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C., Karthikeyan, Jeganathan, Kay, Charles M., Lindemann, J.
The deposition efficiency, mechanical properties and coating roughness in cold-sprayed titanium were discussed. The lowest results of deposition efficiency and the highest results of roughness were...
Hydroxyapatite/polymer composite flame-sprayed coatings for orthopedic applications (2002)
Sun, Limin, Berndt, Christopher C., Gross, Karlis A.
The complex biological and mechanical requirements for implant materials in the human body generally cannot be furnished by one single material. In the present study, hydroxyapatite/polymer composite...
Biomedical application of apatites (2002)
Gross, Karlis A., Berndt, Christopher C.
Abstract not available.
Surface characteristics and dissolution behavior of plasma-sprayed hydroxyapatite coating (2002)
Sun, Limin, Berndt, Christopher C., Khor, Khiam Aik, Cheang, H. N., Gross, Karlis A.
One of the most important concerns with the clinical use of plasma-sprayed hydroxyapatite (HA) coatings is the resorption of the coating, and dissolution at neutral pH is one of the two major...
Microstructural characteristics of cold-sprayed nanostructured WC-Co coatings (2002)
Lima, Rogerio S., Karthikeyan, Jeganathan, Kay, Charles M., Lindemann, J., Berndt, Christopher C.
The cold-spray process was used to prepare nanostructured WC–Co coatings. The coating microstructural characteristics and phase composition were analyzed via optical microscopy, scanning...
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C.
The mechanical behavior of nanostructured partially stabilized zirconia (PSZ) coatings was evaluated via Knoop microhardness. The distribution of the microhardness values of the feedstock particles...
Deposition efficiency, mechanical properties and coating roughness in cold-sprayed titanium (2002)
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C., Karthikeyan, Jeganathan, Kay, Charles M., Lindemann, J.
The deposition efficiency, mechanical properties and coating roughness in cold-sprayed titanium were discussed. The lowest results of deposition efficiency and the highest results of roughness were...
Hydroxyapatite/polymer composite flame-sprayed coatings for orthopedic applications (2002)
Sun, Limin, Berndt, Christopher C., Gross, Karlis A.
The complex biological and mechanical requirements for implant materials in the human body generally cannot be furnished by one single material. In the present study, hydroxyapatite/polymer composite...
Biomedical application of apatites (2002)
Gross, Karlis A., Berndt, Christopher C.
Abstract not available.
Surface characteristics and dissolution behavior of plasma-sprayed hydroxyapatite coating (2002)
Sun, Limin, Berndt, Christopher C., Khor, Khiam Aik, Cheang, H. N., Gross, Karlis A.
One of the most important concerns with the clinical use of plasma-sprayed hydroxyapatite (HA) coatings is the resorption of the coating, and dissolution at neutral pH is one of the two major...
Microstructural characteristics of cold-sprayed nanostructured WC-Co coatings (2002)
Lima, Rogerio S., Karthikeyan, Jeganathan, Kay, Charles M., Lindemann, J., Berndt, Christopher C.
The cold-spray process was used to prepare nanostructured WC–Co coatings. The coating microstructural characteristics and phase composition were analyzed via optical microscopy, scanning...
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C.
The mechanical behavior of nanostructured partially stabilized zirconia (PSZ) coatings was evaluated via Knoop microhardness. The distribution of the microhardness values of the feedstock particles...
Abstract not available.
Deposition efficiency, mechanical properties and coating roughness in cold-sprayed titanium (2002)
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C., Karthikeyan, Jeganathan, Kay, Charles M., Lindemann, J.
The deposition efficiency, mechanical properties and coating roughness in cold-sprayed titanium were discussed. The lowest results of deposition efficiency and the highest results of roughness were...
Hydroxyapatite/polymer composite flame-sprayed coatings for orthopedic applications (2002)
Sun, Limin, Berndt, Christopher C., Gross, Karlis A.
The complex biological and mechanical requirements for implant materials in the human body generally cannot be furnished by one single material. In the present study, hydroxyapatite/polymer composite...
Biomedical application of apatites (2002)
Gross, Karlis A., Berndt, Christopher C.
Abstract not available.
Surface characteristics and dissolution behavior of plasma-sprayed hydroxyapatite coating (2002)
Sun, Limin, Berndt, Christopher C., Khor, Khiam Aik, Cheang, H. N., Gross, Karlis A.
One of the most important concerns with the clinical use of plasma-sprayed hydroxyapatite (HA) coatings is the resorption of the coating, and dissolution at neutral pH is one of the two major...
Microstructural characteristics of cold-sprayed nanostructured WC-Co coatings (2002)
Lima, Rogerio S., Karthikeyan, Jeganathan, Kay, Charles M., Lindemann, J., Berndt, Christopher C.
The cold-spray process was used to prepare nanostructured WC–Co coatings. The coating microstructural characteristics and phase composition were analyzed via optical microscopy, scanning...
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C.
The mechanical behavior of nanostructured partially stabilized zirconia (PSZ) coatings was evaluated via Knoop microhardness. The distribution of the microhardness values of the feedstock particles...
Porosity determinations in thermally sprayed hydroxyapatite coatings (2001)
Mancini, C. E., Berndt, Christopher C., Sun, Limin, Kucuk, Ahmet
The porosity of various thermally sprayed coatings was determined using an Archimedian Method. The method relies on density determinations and buoyancy effects. First, measurements were carried out...
Integrity of nanostructured partially stabilized zirconia after plasma spray processing (2001)
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C.
Nanostructured partially stabilized zirconia powders with different particle size distributions were plasma sprayed under a range of thermal spray parameters. Scanning electron microscopy (SEM) and...
Sun, Limin, Berndt, Christopher C., Gross, Karlis A.
Hydroxyapatite/polymer composite coatings of different volume ratios were produced using a Plastic Flame Spray (PFS) system. The intent of this processing is to obtain a coating with an optimal...
Cold sprayed nanostructured WC-Co (2001)
Karthikeyan, Jeganathan, Kay, Charles M., Lindemann, J., Lima, Rogerio S., Berndt, Christopher C.
The cold spray process was used to prepare nanostructured WC-Co coatings. The coating microstructural characteristics and phase composition were analyzed via optical microscopy, SEM and XRD. The...
The thermal spray process involves the injection of participates into a high flux environment so that momentum and heat transfer can take place. The particles are then accelerated within the gaseous...
Input sought from testers of thermal spray coatings for cohesion (2001)
Abstract not available.
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C.
Results concerning microhardness and roughness (Ra) of plasma sprayed coatings fabricated from nanostructured partially stabilized zirconia (PSZ) feedstock are presented. Nanostructured zirconia...
Influence of plasma spray parameters on formation and morphology of ZrO2-8 wt% Y2O3 deposits (2001)
Kucuk, Ahmet, Lima, Rogerio S., Berndt, Christopher C.
Spray prints of thermal spray coatings were created on glass slides for air-plasma-sprayed 8-wt%-yttria-partially-stabilized zirconia (YSZ) deposits. The spray parameters such as carrier gas flow...
Remesh, K., Yu, S. C. M., Ng, Hong Wah, Lam, Yee Cheong, Berndt, Christopher C.
Three-dimensional numerical analysis was carried out on particle interactions within the DC plasma spray process. The plasma spray process was modeled as a jet issuing from the torch nozzle by the...
Allen, Andrew J., Ilavsky, Jan, Long, Gabrielle G., Wallace, Jay S., Berndt, Christopher C., Herman, Herbert
Density, electron microscopy, elastic modulus, and small-angle neutron scattering studies are used to characterize the microstructures of yttria-stabilized zirconia plasma-sprayed deposits as a...
Scratch testing of nanocrystalline alumina+titania+zirconia (2001)
Gold, M., Berndt, Christopher C.
This work examines nanocrystalline thermal spray coatings prepared under several power and stand off distances. The coating material was nanocrystalline alumina + titania and zirconia (ATZ) powder...
Kucuk, Ahmet, Dambra, C. G., Berndt, Christopher C.
Thermal spray coatings enhance the material properties of substrates but this attribute may be negated if the coatings themselves fail. This paper investigates the performance of an important family...
Sun, Limin, Berndt, Christopher C., Gross, Karlis A., Kucuk, Ahmet
The clinical use of plasma-sprayed hydroxyapatite (HA) coatings on metal implants has aroused as many controversies as interests over the last decade. Although faster and stronger fixation and more...
The origins of thermal spray literature (2001)
The technology of thermal spray will reach its centenary anniversary in the first decade of the 21st century. It is appropriate to summarize the early literature of the 1900's and present, for...
Porosity determinations in thermally sprayed hydroxyapatite coatings (2001)
Mancini, C. E., Berndt, Christopher C., Sun, Limin, Kucuk, Ahmet
The porosity of various thermally sprayed coatings was determined using an Archimedian Method. The method relies on density determinations and buoyancy effects. First, measurements were carried out...
Integrity of nanostructured partially stabilized zirconia after plasma spray processing (2001)
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C.
Nanostructured partially stabilized zirconia powders with different particle size distributions were plasma sprayed under a range of thermal spray parameters. Scanning electron microscopy (SEM) and...
Sun, Limin, Berndt, Christopher C., Gross, Karlis A.
Hydroxyapatite/polymer composite coatings of different volume ratios were produced using a Plastic Flame Spray (PFS) system. The intent of this processing is to obtain a coating with an optimal...
Cold sprayed nanostructured WC-Co (2001)
Karthikeyan, Jeganathan, Kay, Charles M., Lindemann, J., Lima, Rogerio S., Berndt, Christopher C.
The cold spray process was used to prepare nanostructured WC-Co coatings. The coating microstructural characteristics and phase composition were analyzed via optical microscopy, SEM and XRD. The...
The thermal spray process involves the injection of participates into a high flux environment so that momentum and heat transfer can take place. The particles are then accelerated within the gaseous...
Input sought from testers of thermal spray coatings for cohesion (2001)
Abstract not available.
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C.
Results concerning microhardness and roughness (Ra) of plasma sprayed coatings fabricated from nanostructured partially stabilized zirconia (PSZ) feedstock are presented. Nanostructured zirconia...
Influence of plasma spray parameters on formation and morphology of ZrO2-8 wt% Y2O3 deposits (2001)
Kucuk, Ahmet, Lima, Rogerio S., Berndt, Christopher C.
Spray prints of thermal spray coatings were created on glass slides for air-plasma-sprayed 8-wt%-yttria-partially-stabilized zirconia (YSZ) deposits. The spray parameters such as carrier gas flow...
Remesh, K., Yu, S. C. M., Ng, Hong Wah, Lam, Yee Cheong, Berndt, Christopher C.
Three-dimensional numerical analysis was carried out on particle interactions within the DC plasma spray process. The plasma spray process was modeled as a jet issuing from the torch nozzle by the...
Allen, Andrew J., Ilavsky, Jan, Long, Gabrielle G., Wallace, Jay S., Berndt, Christopher C., Herman, Herbert
Density, electron microscopy, elastic modulus, and small-angle neutron scattering studies are used to characterize the microstructures of yttria-stabilized zirconia plasma-sprayed deposits as a...
Scratch testing of nanocrystalline alumina+titania+zirconia (2001)
Gold, M., Berndt, Christopher C.
This work examines nanocrystalline thermal spray coatings prepared under several power and stand off distances. The coating material was nanocrystalline alumina + titania and zirconia (ATZ) powder...
Kucuk, Ahmet, Dambra, C. G., Berndt, Christopher C.
Thermal spray coatings enhance the material properties of substrates but this attribute may be negated if the coatings themselves fail. This paper investigates the performance of an important family...
Sun, Limin, Berndt, Christopher C., Gross, Karlis A., Kucuk, Ahmet
The clinical use of plasma-sprayed hydroxyapatite (HA) coatings on metal implants has aroused as many controversies as interests over the last decade. Although faster and stronger fixation and more...
The origins of thermal spray literature (2001)
The technology of thermal spray will reach its centenary anniversary in the first decade of the 21st century. It is appropriate to summarize the early literature of the 1900's and present, for...
Kucuk, Ahmet, Lima, Rogerio S., Berndt, Christopher C.
Yttria-partially-stabilized zirconia was atmospherically plasma sprayed by systematically varying the process conditions including carrier gas flow rate, torch power, standoff distance, and Ar/H2...
Vasquez, D. L., Kucuk, Ahmet, Lima, Rogerio S., Senturk, Ufuk, Berndt, Christopher C.
Yttria partially stabilized zirconia (YSZ) was atmosphere plasma sprayed on to mild steel substrates. The spray parameters were varied to determine their effects on the elastic modulus of the...
Thermal spray processing of nanoscale materials II: extended abstracts (2001)
Abstract not available.
Kucuk, Ahmet, Lima, Rogerio S., Berndt, Christopher C.
Yttria-partially-stabilized zirconia was atmospherically plasma sprayed by systematically varying the process conditions including carrier gas flow rate, torch power, standoff distance, and Ar/H2...
Vasquez, D. L., Kucuk, Ahmet, Lima, Rogerio S., Senturk, Ufuk, Berndt, Christopher C.
Yttria partially stabilized zirconia (YSZ) was atmosphere plasma sprayed on to mild steel substrates. The spray parameters were varied to determine their effects on the elastic modulus of the...
Thermal spray processing of nanoscale materials II: extended abstracts (2001)
Abstract not available.
Porosity determinations in thermally sprayed hydroxyapatite coatings (2001)
Mancini, C. E., Berndt, Christopher C., Sun, Limin, Kucuk, Ahmet
The porosity of various thermally sprayed coatings was determined using an Archimedian Method. The method relies on density determinations and buoyancy effects. First, measurements were carried out...
Integrity of nanostructured partially stabilized zirconia after plasma spray processing (2001)
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C.
Nanostructured partially stabilized zirconia powders with different particle size distributions were plasma sprayed under a range of thermal spray parameters. Scanning electron microscopy (SEM) and...
Sun, Limin, Berndt, Christopher C., Gross, Karlis A.
Hydroxyapatite/polymer composite coatings of different volume ratios were produced using a Plastic Flame Spray (PFS) system. The intent of this processing is to obtain a coating with an optimal...
Cold sprayed nanostructured WC-Co (2001)
Karthikeyan, Jeganathan, Kay, Charles M., Lindemann, J., Lima, Rogerio S., Berndt, Christopher C.
The cold spray process was used to prepare nanostructured WC-Co coatings. The coating microstructural characteristics and phase composition were analyzed via optical microscopy, SEM and XRD. The...
The thermal spray process involves the injection of participates into a high flux environment so that momentum and heat transfer can take place. The particles are then accelerated within the gaseous...
Input sought from testers of thermal spray coatings for cohesion (2001)
Abstract not available.
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C.
Results concerning microhardness and roughness (Ra) of plasma sprayed coatings fabricated from nanostructured partially stabilized zirconia (PSZ) feedstock are presented. Nanostructured zirconia...
Influence of plasma spray parameters on formation and morphology of ZrO2-8 wt% Y2O3 deposits (2001)
Kucuk, Ahmet, Lima, Rogerio S., Berndt, Christopher C.
Spray prints of thermal spray coatings were created on glass slides for air-plasma-sprayed 8-wt%-yttria-partially-stabilized zirconia (YSZ) deposits. The spray parameters such as carrier gas flow...
Remesh, K., Yu, S. C. M., Ng, Hong Wah, Lam, Yee Cheong, Berndt, Christopher C.
Three-dimensional numerical analysis was carried out on particle interactions within the DC plasma spray process. The plasma spray process was modeled as a jet issuing from the torch nozzle by the...
Allen, Andrew J., Ilavsky, Jan, Long, Gabrielle G., Wallace, Jay S., Berndt, Christopher C., Herman, Herbert
Density, electron microscopy, elastic modulus, and small-angle neutron scattering studies are used to characterize the microstructures of yttria-stabilized zirconia plasma-sprayed deposits as a...
Scratch testing of nanocrystalline alumina+titania+zirconia (2001)
Gold, M., Berndt, Christopher C.
This work examines nanocrystalline thermal spray coatings prepared under several power and stand off distances. The coating material was nanocrystalline alumina + titania and zirconia (ATZ) powder...
Kucuk, Ahmet, Dambra, C. G., Berndt, Christopher C.
Thermal spray coatings enhance the material properties of substrates but this attribute may be negated if the coatings themselves fail. This paper investigates the performance of an important family...
Sun, Limin, Berndt, Christopher C., Gross, Karlis A., Kucuk, Ahmet
The clinical use of plasma-sprayed hydroxyapatite (HA) coatings on metal implants has aroused as many controversies as interests over the last decade. Although faster and stronger fixation and more...
The origins of thermal spray literature (2001)
The technology of thermal spray will reach its centenary anniversary in the first decade of the 21st century. It is appropriate to summarize the early literature of the 1900's and present, for...
Kucuk, Ahmet, Lima, Rogerio S., Berndt, Christopher C.
Yttria-partially-stabilized zirconia was atmospherically plasma sprayed by systematically varying the process conditions including carrier gas flow rate, torch power, standoff distance, and Ar/H2...
Vasquez, D. L., Kucuk, Ahmet, Lima, Rogerio S., Senturk, Ufuk, Berndt, Christopher C.
Yttria partially stabilized zirconia (YSZ) was atmosphere plasma sprayed on to mild steel substrates. The spray parameters were varied to determine their effects on the elastic modulus of the...
Thermal spray processing of nanoscale materials II: extended abstracts (2001)
Abstract not available.
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C.
Results concerning the relationship between deposition efficiency and mechanical properties with coating roughness are presented. A commercial partially stabilized zirconia powder was plasma sprayed...
Cold spray processing of titanium powder (2000)
Karthikeyan, Jeganathan, Kay, Charles M., Lindemann, J., Lima, P. S., Berndt, Christopher C.
Oxygen-free titanium coatings are at present produced using vacuum plasma spray systems. The cold spray process can produce titanium coatings in atmospheric air at reduced cost. Variations of the...
Thermal conductivity behavior of sol-gel post-treated thermal barrier coatings (2000)
Lima, C. R. C., Senturk, Ufuk, Lima, Rogerio S., Berndt, Christopher C.
Thermal barrier coatings have been extensively used in several industrial segments. The material used as an insulator in such systems has been partially stabilized zirconia (PSZ) plasma sprayed over...
On the size-dependent phase transformation in nanoparticulate zirconia (2000)
Chraska, Tomas, King, Alexander H., Berndt, Christopher C.
We have studied the structures of zirconia nanoparticles formed by plasma-spraying an organo-metallic precursor. Inspection of the particles in the TEM reveals that they adopt one of two distinct...
Kucuk, Ahmet, Berndt, Christopher C., Senturk, Ufuk, Lima, Rogerio S.
Yttria (8 wt.%) stabilized zirconia (YSZ) with a NiCrAlY bond coat was atmospherically plasma sprayed on mild steel substrates using various processing parameters including YSZ coating thickness,...
Effects of pores on mechanical properties of plasma-sprayed ceramic coatings (2000)
Nakamura, Toshio, Qian, G., Berndt, Christopher C.
The effects of pore sizes, shapes, and orientations on the mechanical properties of thermally sprayed ceramic coatings are investigated. The analysis is conducted using detailed finite-element models...
Composite coatings of Si3N4-soda lime silica produced by the thermal spray process (2000)
Kucuk, Ahmet, Lima, Rogerio S., Berndt, Christopher C.
Silicate glass and glass-silicon nitride composite coatings were atmospheric plasma sprayed onto mild carbon steel substrates under varying process parameters such as torch power and H2/Ar ratios....
Surface characterization of plasma sprayed hydroxyapatite coatings (2000)
Sun, Limin, Berndt, Christopher C., Kucuk, Ahmet, Lima, Rogerio S., Khor, Khiam Aik
Plasma sprayed hydroxyapatite (HA) coatings have been widely used for dental and orthopedic applications for fast fixation between the implant and the human anatomy. In this study, the HA coatings...
Ibrahim, A., Berndt, Christopher C.
The effect of high frequency pulse detonation (HFPD) and HVOF thermally sprayed WC-Co coatings on the high cycle fatigue (HCF) behavior of 2024-T4 aluminum was investigated. The fatigue life...
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C.
Results concerning the relationship between deposition efficiency and mechanical properties with coating roughness are presented. A commercial partially stabilized zirconia powder was plasma sprayed...
Cold spray processing of titanium powder (2000)
Karthikeyan, Jeganathan, Kay, Charles M., Lindemann, J., Lima, P. S., Berndt, Christopher C.
Oxygen-free titanium coatings are at present produced using vacuum plasma spray systems. The cold spray process can produce titanium coatings in atmospheric air at reduced cost. Variations of the...
Thermal conductivity behavior of sol-gel post-treated thermal barrier coatings (2000)
Lima, C. R. C., Senturk, Ufuk, Lima, Rogerio S., Berndt, Christopher C.
Thermal barrier coatings have been extensively used in several industrial segments. The material used as an insulator in such systems has been partially stabilized zirconia (PSZ) plasma sprayed over...
On the size-dependent phase transformation in nanoparticulate zirconia (2000)
Chraska, Tomas, King, Alexander H., Berndt, Christopher C.
We have studied the structures of zirconia nanoparticles formed by plasma-spraying an organo-metallic precursor. Inspection of the particles in the TEM reveals that they adopt one of two distinct...
Kucuk, Ahmet, Berndt, Christopher C., Senturk, Ufuk, Lima, Rogerio S.
Yttria (8 wt.%) stabilized zirconia (YSZ) with a NiCrAlY bond coat was atmospherically plasma sprayed on mild steel substrates using various processing parameters including YSZ coating thickness,...
Effects of pores on mechanical properties of plasma-sprayed ceramic coatings (2000)
Nakamura, Toshio, Qian, G., Berndt, Christopher C.
The effects of pore sizes, shapes, and orientations on the mechanical properties of thermally sprayed ceramic coatings are investigated. The analysis is conducted using detailed finite-element models...
Composite coatings of Si3N4-soda lime silica produced by the thermal spray process (2000)
Kucuk, Ahmet, Lima, Rogerio S., Berndt, Christopher C.
Silicate glass and glass-silicon nitride composite coatings were atmospheric plasma sprayed onto mild carbon steel substrates under varying process parameters such as torch power and H2/Ar ratios....
Surface characterization of plasma sprayed hydroxyapatite coatings (2000)
Sun, Limin, Berndt, Christopher C., Kucuk, Ahmet, Lima, Rogerio S., Khor, Khiam Aik
Plasma sprayed hydroxyapatite (HA) coatings have been widely used for dental and orthopedic applications for fast fixation between the implant and the human anatomy. In this study, the HA coatings...
Ibrahim, A., Berndt, Christopher C.
The effect of high frequency pulse detonation (HFPD) and HVOF thermally sprayed WC-Co coatings on the high cycle fatigue (HCF) behavior of 2024-T4 aluminum was investigated. The fatigue life...
Characterization of mechanical properties of TBCs via a Taguchi experimental design (2000)
Kucuk, Ahmet, Berndt, Christopher C., Senturk, Ufuk, Lima, Rogerio S.
Experimental designs have been used by the thermal spray community to improve and optimize spray parameters to produce coatings with desired properties. The influence of four spray parameters...
Application of heat treat simulation in continuous improvement of product reliability (2000)
Cai, Jun, Chuzhoy, Leo, Berndt, Christopher C., Keil, Gernot, Burris, Kenneth W., Taft, M.
A heat treat simulation package called QSIM (Quench SIMulation), has been developed at Caterpillar for predicting microstructure evolution during heat treatment of steel and resultant hardness,...
Kucuk, Ahmet, Berndt, Christopher C., Senturk, Ufuk, Lima, Rogerio S., Lima, C. R. C.
Yttria (8 wt.%) stabilized zirconia (YSZ) with a NiCrAlY bond coat was atmosphere plasma sprayed on mild steel substrates. The bond coat thickness (100–250 μm), YSZ coating thickness...
Deformation of plasma sprayed thermal barrier coatings (2000)
Senturk, Ufuk, Lima, Rogerio S., Lima, C. R. C., Berndt, Christopher C.
The deformation behavior of thermally sprayed partially stabilized zirconia (PSZ) coatings are investigated using Hertzian indentation and four-point bend testing, with in situ acoustic emission...
Deformation characteristics of plasma sprayed thermal barrier coatings (2000)
Kucuk, Ahmet, Berndt, Christopher C., Senturk, Ufuk, Lima, Rogerio S., Lima, C. R. C.
Yttria stabilized zirconia was atmospherically plasma sprayed using various processes parameters including top and bond coat thickness, substrate temperature and spray distance. Coatings were tested...
Sun, Limin, Berndt, Christopher C., Lima, Rogerio S., Kucuk, Ahmet, Khor, Khiam Aik
Calcined spray-dried hydroxyapatite (Ca10(PO 4)(OH)6; i.e., HA) powders were atmospherically plasma sprayed (APS) using various process parameters. The resulting phases within the coating surface and...
Characterization of mechanical properties of TBCs via a Taguchi experimental design (2000)
Kucuk, Ahmet, Berndt, Christopher C., Senturk, Ufuk, Lima, Rogerio S.
Experimental designs have been used by the thermal spray community to improve and optimize spray parameters to produce coatings with desired properties. The influence of four spray parameters...
Application of heat treat simulation in continuous improvement of product reliability (2000)
Cai, Jun, Chuzhoy, Leo, Berndt, Christopher C., Keil, Gernot, Burris, Kenneth W., Taft, M.
A heat treat simulation package called QSIM (Quench SIMulation), has been developed at Caterpillar for predicting microstructure evolution during heat treatment of steel and resultant hardness,...
Kucuk, Ahmet, Berndt, Christopher C., Senturk, Ufuk, Lima, Rogerio S., Lima, C. R. C.
Yttria (8 wt.%) stabilized zirconia (YSZ) with a NiCrAlY bond coat was atmosphere plasma sprayed on mild steel substrates. The bond coat thickness (100–250 μm), YSZ coating thickness...
Deformation of plasma sprayed thermal barrier coatings (2000)
Senturk, Ufuk, Lima, Rogerio S., Lima, C. R. C., Berndt, Christopher C.
The deformation behavior of thermally sprayed partially stabilized zirconia (PSZ) coatings are investigated using Hertzian indentation and four-point bend testing, with in situ acoustic emission...
Deformation characteristics of plasma sprayed thermal barrier coatings (2000)
Kucuk, Ahmet, Berndt, Christopher C., Senturk, Ufuk, Lima, Rogerio S., Lima, C. R. C.
Yttria stabilized zirconia was atmospherically plasma sprayed using various processes parameters including top and bond coat thickness, substrate temperature and spray distance. Coatings were tested...
Sun, Limin, Berndt, Christopher C., Lima, Rogerio S., Kucuk, Ahmet, Khor, Khiam Aik
Calcined spray-dried hydroxyapatite (Ca10(PO 4)(OH)6; i.e., HA) powders were atmospherically plasma sprayed (APS) using various process parameters. The resulting phases within the coating surface and...
Lima, Rogerio S., Kucuk, Ahmet, Berndt, Christopher C.
Results concerning the relationship between deposition efficiency and mechanical properties with coating roughness are presented. A commercial partially stabilized zirconia powder was plasma sprayed...
Cold spray processing of titanium powder (2000)
Karthikeyan, Jeganathan, Kay, Charles M., Lindemann, J., Lima, P. S., Berndt, Christopher C.
Oxygen-free titanium coatings are at present produced using vacuum plasma spray systems. The cold spray process can produce titanium coatings in atmospheric air at reduced cost. Variations of the...
Thermal conductivity behavior of sol-gel post-treated thermal barrier coatings (2000)
Lima, C. R. C., Senturk, Ufuk, Lima, Rogerio S., Berndt, Christopher C.
Thermal barrier coatings have been extensively used in several industrial segments. The material used as an insulator in such systems has been partially stabilized zirconia (PSZ) plasma sprayed over...
On the size-dependent phase transformation in nanoparticulate zirconia (2000)
Chraska, Tomas, King, Alexander H., Berndt, Christopher C.
We have studied the structures of zirconia nanoparticles formed by plasma-spraying an organo-metallic precursor. Inspection of the particles in the TEM reveals that they adopt one of two distinct...
Kucuk, Ahmet, Berndt, Christopher C., Senturk, Ufuk, Lima, Rogerio S.
Yttria (8 wt.%) stabilized zirconia (YSZ) with a NiCrAlY bond coat was atmospherically plasma sprayed on mild steel substrates using various processing parameters including YSZ coating thickness,...
Effects of pores on mechanical properties of plasma-sprayed ceramic coatings (2000)
Nakamura, Toshio, Qian, G., Berndt, Christopher C.
The effects of pore sizes, shapes, and orientations on the mechanical properties of thermally sprayed ceramic coatings are investigated. The analysis is conducted using detailed finite-element models...
Composite coatings of Si3N4-soda lime silica produced by the thermal spray process (2000)
Kucuk, Ahmet, Lima, Rogerio S., Berndt, Christopher C.
Silicate glass and glass-silicon nitride composite coatings were atmospheric plasma sprayed onto mild carbon steel substrates under varying process parameters such as torch power and H2/Ar ratios....
Surface characterization of plasma sprayed hydroxyapatite coatings (2000)
Sun, Limin, Berndt, Christopher C., Kucuk, Ahmet, Lima, Rogerio S., Khor, Khiam Aik
Plasma sprayed hydroxyapatite (HA) coatings have been widely used for dental and orthopedic applications for fast fixation between the implant and the human anatomy. In this study, the HA coatings...
Ibrahim, A., Berndt, Christopher C.
The effect of high frequency pulse detonation (HFPD) and HVOF thermally sprayed WC-Co coatings on the high cycle fatigue (HCF) behavior of 2024-T4 aluminum was investigated. The fatigue life...
Characterization of mechanical properties of TBCs via a Taguchi experimental design (2000)
Kucuk, Ahmet, Berndt, Christopher C., Senturk, Ufuk, Lima, Rogerio S.
Experimental designs have been used by the thermal spray community to improve and optimize spray parameters to produce coatings with desired properties. The influence of four spray parameters...
Application of heat treat simulation in continuous improvement of product reliability (2000)
Cai, Jun, Chuzhoy, Leo, Berndt, Christopher C., Keil, Gernot, Burris, Kenneth W., Taft, M.
A heat treat simulation package called QSIM (Quench SIMulation), has been developed at Caterpillar for predicting microstructure evolution during heat treatment of steel and resultant hardness,...
Kucuk, Ahmet, Berndt, Christopher C., Senturk, Ufuk, Lima, Rogerio S., Lima, C. R. C.
Yttria (8 wt.%) stabilized zirconia (YSZ) with a NiCrAlY bond coat was atmosphere plasma sprayed on mild steel substrates. The bond coat thickness (100–250 μm), YSZ coating thickness...
Deformation of plasma sprayed thermal barrier coatings (2000)
Senturk, Ufuk, Lima, Rogerio S., Lima, C. R. C., Berndt, Christopher C.
The deformation behavior of thermally sprayed partially stabilized zirconia (PSZ) coatings are investigated using Hertzian indentation and four-point bend testing, with in situ acoustic emission...
Deformation characteristics of plasma sprayed thermal barrier coatings (2000)
Kucuk, Ahmet, Berndt, Christopher C., Senturk, Ufuk, Lima, Rogerio S., Lima, C. R. C.
Yttria stabilized zirconia was atmospherically plasma sprayed using various processes parameters including top and bond coat thickness, substrate temperature and spray distance. Coatings were tested...
Sun, Limin, Berndt, Christopher C., Lima, Rogerio S., Kucuk, Ahmet, Khor, Khiam Aik
Calcined spray-dried hydroxyapatite (Ca10(PO 4)(OH)6; i.e., HA) powders were atmospherically plasma sprayed (APS) using various process parameters. The resulting phases within the coating surface and...
Abbate, Agostino, Russell, W., Goldman, J., Kotidis, Petros, Berndt, Christopher C.
Abstract not available.
Evolution of the void structure in plasma-sprayed YSZ deposits during heating (1999)
Ilavsky, Jan, Long, Gabrielle G., Allen, Andrew J., Berndt, Christopher C.
The evolution of the anisotropic void microstructure of plasma-sprayed yttria-stabilized zirconia (YSZ) deposits has been observed as a function of temperature by small-angle neutron scattering....
Modelling of elastic constants of plasma spray deposits with ellipsoid-shaped voids (1999)
Leigh, Sang Ha, Berndt, Christopher C.
The five independent elastic constants of plasma spray deposits were calculated from constitutive equations and microstructural information (void aspect ratios and porosity) was gained from...
Quantitative evaluation of void distributions within a plasma-sprayed ceramic (1999)
Leigh, Sang Ha, Berndt, Christopher C.
The size-shape distribution of voids, which includes cracks and pores, was determined using quantitative stereological analysis. The analysis was performed on a water-stabilized plasma-spray-formed...
The rationale for a JTST Award for the best scientific paper (1999)
Seals, R. D., Berndt, Christopher C.
Abstract not available.
Abbate, Agostino, Russell, W., Goldman, J., Kotidis, Petros, Berndt, Christopher C.
Abstract not available.
Evolution of the void structure in plasma-sprayed YSZ deposits during heating (1999)
Ilavsky, Jan, Long, Gabrielle G., Allen, Andrew J., Berndt, Christopher C.
The evolution of the anisotropic void microstructure of plasma-sprayed yttria-stabilized zirconia (YSZ) deposits has been observed as a function of temperature by small-angle neutron scattering....
Modelling of elastic constants of plasma spray deposits with ellipsoid-shaped voids (1999)
Leigh, Sang Ha, Berndt, Christopher C.
The five independent elastic constants of plasma spray deposits were calculated from constitutive equations and microstructural information (void aspect ratios and porosity) was gained from...
Quantitative evaluation of void distributions within a plasma-sprayed ceramic (1999)
Leigh, Sang Ha, Berndt, Christopher C.
The size-shape distribution of voids, which includes cracks and pores, was determined using quantitative stereological analysis. The analysis was performed on a water-stabilized plasma-spray-formed...
The rationale for a JTST Award for the best scientific paper (1999)
Seals, R. D., Berndt, Christopher C.
Abstract not available.
Callus, P. J., Berndt, Christopher C.
A novel test specimen geometry was used to determine the critical mode II strain energy release rate, GIIc, of nine batches of air- and low-pressure plasma-sprayed coatings. These data will...
Callus, P. J., Berndt, Christopher C.
A novel test specimen geometry was used to determine the critical mode II strain energy release rate, GIIc, of nine batches of air- and low-pressure plasma-sprayed coatings. These data will...
Abbate, Agostino, Russell, W., Goldman, J., Kotidis, Petros, Berndt, Christopher C.
Abstract not available.
Evolution of the void structure in plasma-sprayed YSZ deposits during heating (1999)
Ilavsky, Jan, Long, Gabrielle G., Allen, Andrew J., Berndt, Christopher C.
The evolution of the anisotropic void microstructure of plasma-sprayed yttria-stabilized zirconia (YSZ) deposits has been observed as a function of temperature by small-angle neutron scattering....
Modelling of elastic constants of plasma spray deposits with ellipsoid-shaped voids (1999)
Leigh, Sang Ha, Berndt, Christopher C.
The five independent elastic constants of plasma spray deposits were calculated from constitutive equations and microstructural information (void aspect ratios and porosity) was gained from...
Quantitative evaluation of void distributions within a plasma-sprayed ceramic (1999)
Leigh, Sang Ha, Berndt, Christopher C.
The size-shape distribution of voids, which includes cracks and pores, was determined using quantitative stereological analysis. The analysis was performed on a water-stabilized plasma-spray-formed...
The rationale for a JTST Award for the best scientific paper (1999)
Seals, R. D., Berndt, Christopher C.
Abstract not available.
Callus, P. J., Berndt, Christopher C.
A novel test specimen geometry was used to determine the critical mode II strain energy release rate, GIIc, of nine batches of air- and low-pressure plasma-sprayed coatings. These data will...
Development of Recycled Polymer Blends for Thermal Spray Applications (1998)
Berndt, Christopher C., Drozdz, Susan A.
A proposed rule to implement Section 183(e) of the Clean Air Act amendments (1990) will further restrict the volatile organic compound (VOC) content of rust-preventing coatings. Thermal spray...
Symposium I: Nanomaterials for Structural Applications (1998)
Berndt, Christopher C., Fischer, Traugott E., Ovid'ko, Ilya, Skandad, Ganesh
Symposium I on Nanomaterials for Structural Applications provided an overview of current multidisciplinary research in this rapidly growing field with the primary focus of reinforcing the...
Berndt, Christopher C., Fischer, Traugott E., Ovid'ko, Ilya, Skandan, Ganesh, Tsakalakos, Thomas
This volume contains selected papers presented at the symposium whose thematic sessions covered nanostructured bulk materials, films, coatings and nanocomposites. These new materials are now being...
Abstract not available.
Variability of hydroxyapatite-coated dental implants (1998)
Gross, Karlis A., Berndt, Christopher C., Iacono, Vincent J.
Uniformity, surface roughness, and chemical phase structure are all important features of implant coatings. While the first two variables are important for implant placement, the phase structure...
Thermal expansion properties of metallic and cermet coatings (1998)
Ilavsky, Jan, Berndt, Christopher C.
Free-standing deposits of NiCrAl, stainless steel, and 8 wt.% yttria-stabilized zirconia were prepared using atmospheric plasma spraying and high velocity oxygen fuel processing. Feedstock powders...
Physical and relaxation properties of flame-sprayed ethylene-methacrylic acid copolymer (1998)
Brogan, Jeffrey A., Berndt, Christopher C., Simon, George P., Hewtit, David
A range of physical and chemical properties of flame-sprayed ethylene-methacrylic acid copolymer (EMAA) were assessed, following different processing conditions. Coatings were produced at a range of...
Oxyapatite in hydroxyapatite coatings (1998)
Gross, Karlis A., Berndt, Christopher C., Stephens, Peter W., Dinnebier, Robert E.
Plasma sprayed hydroxyapatite coatings are used as bioactive surfaces for increasing the fixation of bone to the dental implants or orthopaedic prostheses. The variability in the performance of these...
Acoustic emission studies on thermal spray materials (1998)
Lin, Chung Kwei, Berndt, Christopher C.
Acoustic emission (AE) has been used to assess the integrity of ceramic coatings. The early studies enabled cracking mechanisms to be qualitatively assessed so that comparative studies of coating...
Abstract not available.
Variability of hydroxyapatite-coated dental implants (1998)
Gross, Karlis A., Berndt, Christopher C., Iacono, Vincent J.
Uniformity, surface roughness, and chemical phase structure are all important features of implant coatings. While the first two variables are important for implant placement, the phase structure...
Thermal expansion properties of metallic and cermet coatings (1998)
Ilavsky, Jan, Berndt, Christopher C.
Free-standing deposits of NiCrAl, stainless steel, and 8 wt.% yttria-stabilized zirconia were prepared using atmospheric plasma spraying and high velocity oxygen fuel processing. Feedstock powders...
Physical and relaxation properties of flame-sprayed ethylene-methacrylic acid copolymer (1998)
Brogan, Jeffrey A., Berndt, Christopher C., Simon, George P., Hewtit, David
A range of physical and chemical properties of flame-sprayed ethylene-methacrylic acid copolymer (EMAA) were assessed, following different processing conditions. Coatings were produced at a range of...
Oxyapatite in hydroxyapatite coatings (1998)
Gross, Karlis A., Berndt, Christopher C., Stephens, Peter W., Dinnebier, Robert E.
Plasma sprayed hydroxyapatite coatings are used as bioactive surfaces for increasing the fixation of bone to the dental implants or orthopaedic prostheses. The variability in the performance of these...
Acoustic emission studies on thermal spray materials (1998)
Lin, Chung Kwei, Berndt, Christopher C.
Acoustic emission (AE) has been used to assess the integrity of ceramic coatings. The early studies enabled cracking mechanisms to be qualitatively assessed so that comparative studies of coating...
Ibrahim, A., Berndt, Christopher C.
Thermally sprayed WC Co coatings are currently used in numerous contact wear applications in the aircraft, automotive and paper industries. High-cycle fatigue tests were performed at room temperature...
Phase transformation as a function of particle size in nanocrystalline zirconia (1998)
Chraska, Tomas, King, Alexander H., Berndt, Christopher C., Karthikeyan, Jeganathan
Bulk zirconia undergoes a pressure-induced transformation from a (low pressure) monoclinic phase to a high pressure tetragonal phase, at around 3 GPa (above 900 K). We have studied the structures of...
Thermal processing of hydroxyapatite for coating production (1998)
Gross, Karlis A., Berndt, Christopher C.
Thermally processed hydroxyapatite coatings used on dental implants and hip prostheses for enhanced fixation may typically consist of a number of chemical and structural phases. These phases affect...
Thermal analysis of amorphous phases in hydroxyapatite coatings (1998)
Gross, Karlis A., Gross, Volfgangs, Berndt, Christopher C.
The amorphous phase in hydroxyapatite coatings has been examined by using X-ray diffractometry, Fourier transform infrared spectroscopy, optical microscopy, and thermal analysis methods. The...
Microstructural index to quantify thermal spray deposit microstructures using image analysis (1998)
Montavon, Ghislain, Coddet, Christian, Berndt, Christopher C., Leigh, Sang Ha
The basic metallographic analysis leads to qualitative interpretation of the structural characteristics of a microstructure, for example the presence of phases, and the description of singularities...
Mechanical properties of spray-formed composite structures (1998)
Brogan, Jeffrey A., Berndt, Christopher C., Claudon, A., Coddet, Christian
In this study, ethylene methacrylic acid copolymer (EMAA) was used as the matrix to produce EMAA/Al2O3 and EMAA/NiCr composite coatings from dry-blended powder mixtures. This work was conducted to...
Long-term engineering properties of recycled plastic lumber used in pier construction (1998)
Breslin, Vincent T., Senturk, Ufuk, Berndt, Christopher C.
Plastic lumber manufactured using post consumer waste plastic has been proposed as an acceptable material for use in the construction of docks, piers and bulkheads and is touted to outlast...
Ilavsky, Jan, Long, Gabrielle G., Allen, Andrew J., Herman, Herbert, Berndt, Christopher C.
Results for the microstructural characterization of thermal spray deposits, using small-angle neutron scattering (SANS), mercury-intrusion porosimetry, and image analysis of polished cross sections,...
Plasma sprayed ni-al coatings for safe ending heat exchanger tubes (1998)
Allan, Margaret L., Otterson, D., Berndt, Christopher C.
Brookhaven National Laboratory (BNL) has developed thermally conductive composite liners for corrosion and scale protection in heat exchanger tubes exposed to geothermal brine. The liners cannot...
Berndt, Christopher C., Brogan, Jeffrey A., Montavon, Ghislain, Claudon, A., Coddet, Christian
Polymeric composites, with either metallic or ceramic fillers, have been manufactured by thermal spray, and their mechanical properties have been measured. The advantage of this technology is that it...
Thermal spray processing of nanoscale materials: a conference report with extended abstract (1998)
Berndt, Christopher C., Lavernia, Enrique J.
Abstract not available.
Thermal conductivity of a zirconia thermal barrier coating (1998)
Slifka, Andrew J., Filla, B. James, Phelps, John M., Bancke, G. A., Berndt, Christopher C.
The conductivity of a thermal-barrier coating composed of atmospheric plasma sprayed 8 mass percent yttria partially stabilized zirconia has been measured. This coating was sprayed on a substrate of...
Porosity measurement and densification of plasma sprayed alumina-titania deposits (1998)
Murakami, Kenji, Leigh, Sang Ha, Berndt, Christopher C., Sampath, Sanjay, Herman, Herbert, ...
Abstract not available.
Thermal sprayed polymer coatings for corrosion protection in a biochemical treatment process (1998)
Allan, Margaret L., Berndt, Christopher C., Brogan, Jeffrey A., Otterson, D.
Thermal sprayed ethylene methacrylic acid (EMAA) and ethylene tetrafluoroethylene (ETFE) coatings were evaluated for corrosion protection in a biochemical process to treat geothermal residues....
Effects of thermal gradient and residual stresses on thermal barrier coating fracture (1998)
Qian, G., Nakamura, Toshio, Berndt, Christopher C.
Driving mechanisms which lead to internal crack growth and failure in the thermally sprayed coatings are identified using detailed finite element models. Coatings are assumed to contain embedded...
Berndt, Christopher C., Leigh, Sang Ha
Four-point bend tests with in situ acoustic emission (AE) were used to study the cracking behavior of alumina-3 % titania materials prepared by gas- and water-stabilized plasma technologies (GSP and...
Polymer coatings for corrosion protection in biochemical treatment of geothermal residues (1998)
Allan, Margaret L., Berndt, Christopher C., Otterson, D.
Ceramic-filled epoxy, ethylene methacrylic acid (EMAA) and ethylene tetrafluoroethylene (ETFE) coatings were evaluated for corrosion protection in a biochemical process to treat geothermal residues....
Nanomaterial deposits formed by DC plasma spraying of liquid feedstocks (1998)
Karthikeyan, Jeganathan, Berndt, Christopher C., Reddy, Sri, Wang, Jenn Yue, King, Alexander H., Herman, Herbert
An experimental system consisting of an axial feed plasma gun, a variable-rate liquid delivery system, a liquid atomizer-feeder, and a substrate movement and control system was designed and assembled...
Modelling of elastic constants of plasma spray deposits with spheroid-shaped voids (1998)
Leigh, Sang Ha, Lee, Gyu Chang, Berndt, Christopher C.
The five independent elastic constants of plasma spray deposits were calculated from constitutive equations and the microstructural information (void aspect ratios and porosity) were gained from...
Identification of the amorphous phase in plasma sprayed apatite coatings (1998)
Gross, Karlis A., Phillips, Matthew R., Ben-Nissan, B., Berndt, Christopher C.
Most hydroxyapatite coated implants produced by plasma spraying contain the amorphous phase which affects the longevity of the coatings. It is thus necessary to measure, locate and quantify this in...
Amorphous phase formation in plasma-sprayed hydroxyapatite coatings (1998)
Gross, Karlis A., Berndt, Christopher C., Herman, Herbert
The amorphous phase content of air plasma-sprayed hydroxyapatite coatings is dependent upon spraying and deposition conditions. X-ray diffraction and optical microscopy were used to investigate the...
Abbate, Agostino, Russell, W., Kotidis, Petros, Berndt, Christopher C.
A nondestructive laser-ultrasonic technique and instrumentation for simultaneously measuring the thickness and the elastic properties of ceramic plasma sprayed thermal barrier coatings (TBCs) is...
Ibrahim, A., Berndt, Christopher C.
Thermally sprayed WC Co coatings are currently used in numerous contact wear applications in the aircraft, automotive and paper industries. High-cycle fatigue tests were performed at room temperature...
Phase transformation as a function of particle size in nanocrystalline zirconia (1998)
Chraska, Tomas, King, Alexander H., Berndt, Christopher C., Karthikeyan, Jeganathan
Bulk zirconia undergoes a pressure-induced transformation from a (low pressure) monoclinic phase to a high pressure tetragonal phase, at around 3 GPa (above 900 K). We have studied the structures of...
Thermal processing of hydroxyapatite for coating production (1998)
Gross, Karlis A., Berndt, Christopher C.
Thermally processed hydroxyapatite coatings used on dental implants and hip prostheses for enhanced fixation may typically consist of a number of chemical and structural phases. These phases affect...
Thermal analysis of amorphous phases in hydroxyapatite coatings (1998)
Gross, Karlis A., Gross, Volfgangs, Berndt, Christopher C.
The amorphous phase in hydroxyapatite coatings has been examined by using X-ray diffractometry, Fourier transform infrared spectroscopy, optical microscopy, and thermal analysis methods. The...
Microstructural index to quantify thermal spray deposit microstructures using image analysis (1998)
Montavon, Ghislain, Coddet, Christian, Berndt, Christopher C., Leigh, Sang Ha
The basic metallographic analysis leads to qualitative interpretation of the structural characteristics of a microstructure, for example the presence of phases, and the description of singularities...
Mechanical properties of spray-formed composite structures (1998)
Brogan, Jeffrey A., Berndt, Christopher C., Claudon, A., Coddet, Christian
In this study, ethylene methacrylic acid copolymer (EMAA) was used as the matrix to produce EMAA/Al2O3 and EMAA/NiCr composite coatings from dry-blended powder mixtures. This work was conducted to...
Long-term engineering properties of recycled plastic lumber used in pier construction (1998)
Breslin, Vincent T., Senturk, Ufuk, Berndt, Christopher C.
Plastic lumber manufactured using post consumer waste plastic has been proposed as an acceptable material for use in the construction of docks, piers and bulkheads and is touted to outlast...
Ilavsky, Jan, Long, Gabrielle G., Allen, Andrew J., Herman, Herbert, Berndt, Christopher C.
Results for the microstructural characterization of thermal spray deposits, using small-angle neutron scattering (SANS), mercury-intrusion porosimetry, and image analysis of polished cross sections,...
Plasma sprayed ni-al coatings for safe ending heat exchanger tubes (1998)
Allan, Margaret L., Otterson, D., Berndt, Christopher C.
Brookhaven National Laboratory (BNL) has developed thermally conductive composite liners for corrosion and scale protection in heat exchanger tubes exposed to geothermal brine. The liners cannot...
Berndt, Christopher C., Brogan, Jeffrey A., Montavon, Ghislain, Claudon, A., Coddet, Christian
Polymeric composites, with either metallic or ceramic fillers, have been manufactured by thermal spray, and their mechanical properties have been measured. The advantage of this technology is that it...
Thermal spray processing of nanoscale materials: a conference report with extended abstract (1998)
Berndt, Christopher C., Lavernia, Enrique J.
Abstract not available.
Thermal conductivity of a zirconia thermal barrier coating (1998)
Slifka, Andrew J., Filla, B. James, Phelps, John M., Bancke, G. A., Berndt, Christopher C.
The conductivity of a thermal-barrier coating composed of atmospheric plasma sprayed 8 mass percent yttria partially stabilized zirconia has been measured. This coating was sprayed on a substrate of...
Porosity measurement and densification of plasma sprayed alumina-titania deposits (1998)
Murakami, Kenji, Leigh, Sang Ha, Berndt, Christopher C., Sampath, Sanjay, Herman, Herbert, ...
Abstract not available.
Thermal sprayed polymer coatings for corrosion protection in a biochemical treatment process (1998)
Allan, Margaret L., Berndt, Christopher C., Brogan, Jeffrey A., Otterson, D.
Thermal sprayed ethylene methacrylic acid (EMAA) and ethylene tetrafluoroethylene (ETFE) coatings were evaluated for corrosion protection in a biochemical process to treat geothermal residues....
Effects of thermal gradient and residual stresses on thermal barrier coating fracture (1998)
Qian, G., Nakamura, Toshio, Berndt, Christopher C.
Driving mechanisms which lead to internal crack growth and failure in the thermally sprayed coatings are identified using detailed finite element models. Coatings are assumed to contain embedded...
Berndt, Christopher C., Leigh, Sang Ha
Four-point bend tests with in situ acoustic emission (AE) were used to study the cracking behavior of alumina-3 % titania materials prepared by gas- and water-stabilized plasma technologies (GSP and...
Polymer coatings for corrosion protection in biochemical treatment of geothermal residues (1998)
Allan, Margaret L., Berndt, Christopher C., Otterson, D.
Ceramic-filled epoxy, ethylene methacrylic acid (EMAA) and ethylene tetrafluoroethylene (ETFE) coatings were evaluated for corrosion protection in a biochemical process to treat geothermal residues....
Nanomaterial deposits formed by DC plasma spraying of liquid feedstocks (1998)
Karthikeyan, Jeganathan, Berndt, Christopher C., Reddy, Sri, Wang, Jenn Yue, King, Alexander H., Herman, Herbert
An experimental system consisting of an axial feed plasma gun, a variable-rate liquid delivery system, a liquid atomizer-feeder, and a substrate movement and control system was designed and assembled...
Modelling of elastic constants of plasma spray deposits with spheroid-shaped voids (1998)
Leigh, Sang Ha, Lee, Gyu Chang, Berndt, Christopher C.
The five independent elastic constants of plasma spray deposits were calculated from constitutive equations and the microstructural information (void aspect ratios and porosity) were gained from...
Identification of the amorphous phase in plasma sprayed apatite coatings (1998)
Gross, Karlis A., Phillips, Matthew R., Ben-Nissan, B., Berndt, Christopher C.
Most hydroxyapatite coated implants produced by plasma spraying contain the amorphous phase which affects the longevity of the coatings. It is thus necessary to measure, locate and quantify this in...
Amorphous phase formation in plasma-sprayed hydroxyapatite coatings (1998)
Gross, Karlis A., Berndt, Christopher C., Herman, Herbert
The amorphous phase content of air plasma-sprayed hydroxyapatite coatings is dependent upon spraying and deposition conditions. X-ray diffraction and optical microscopy were used to investigate the...
Abbate, Agostino, Russell, W., Kotidis, Petros, Berndt, Christopher C.
A nondestructive laser-ultrasonic technique and instrumentation for simultaneously measuring the thickness and the elastic properties of ceramic plasma sprayed thermal barrier coatings (TBCs) is...
Indentation response of molybdenum disilicide (1998)
Newman, A., Jewett, Thomas J., Sampath, Sanjay, Berndt, Christopher C., Herman, Herbert
The influence of microstructure on the indentation cracking behavior of molybdenum disilicide (MoSi2) has been examined. The indentation response of samples produced by various methods has been...
Indentation response of molybdenum disilicide (1998)
Newman, A., Jewett, Thomas J., Sampath, Sanjay, Berndt, Christopher C., Herman, Herbert
The influence of microstructure on the indentation cracking behavior of molybdenum disilicide (MoSi2) has been examined. The indentation response of samples produced by various methods has been...
Abstract not available.
Variability of hydroxyapatite-coated dental implants (1998)
Gross, Karlis A., Berndt, Christopher C., Iacono, Vincent J.
Uniformity, surface roughness, and chemical phase structure are all important features of implant coatings. While the first two variables are important for implant placement, the phase structure...
Thermal expansion properties of metallic and cermet coatings (1998)
Ilavsky, Jan, Berndt, Christopher C.
Free-standing deposits of NiCrAl, stainless steel, and 8 wt.% yttria-stabilized zirconia were prepared using atmospheric plasma spraying and high velocity oxygen fuel processing. Feedstock powders...
Physical and relaxation properties of flame-sprayed ethylene-methacrylic acid copolymer (1998)
Brogan, Jeffrey A., Berndt, Christopher C., Simon, George P., Hewtit, David
A range of physical and chemical properties of flame-sprayed ethylene-methacrylic acid copolymer (EMAA) were assessed, following different processing conditions. Coatings were produced at a range of...
Oxyapatite in hydroxyapatite coatings (1998)
Gross, Karlis A., Berndt, Christopher C., Stephens, Peter W., Dinnebier, Robert E.
Plasma sprayed hydroxyapatite coatings are used as bioactive surfaces for increasing the fixation of bone to the dental implants or orthopaedic prostheses. The variability in the performance of these...
Acoustic emission studies on thermal spray materials (1998)
Lin, Chung Kwei, Berndt, Christopher C.
Acoustic emission (AE) has been used to assess the integrity of ceramic coatings. The early studies enabled cracking mechanisms to be qualitatively assessed so that comparative studies of coating...
Ibrahim, A., Berndt, Christopher C.
Thermally sprayed WC Co coatings are currently used in numerous contact wear applications in the aircraft, automotive and paper industries. High-cycle fatigue tests were performed at room temperature...
Phase transformation as a function of particle size in nanocrystalline zirconia (1998)
Chraska, Tomas, King, Alexander H., Berndt, Christopher C., Karthikeyan, Jeganathan
Bulk zirconia undergoes a pressure-induced transformation from a (low pressure) monoclinic phase to a high pressure tetragonal phase, at around 3 GPa (above 900 K). We have studied the structures of...
Thermal processing of hydroxyapatite for coating production (1998)
Gross, Karlis A., Berndt, Christopher C.
Thermally processed hydroxyapatite coatings used on dental implants and hip prostheses for enhanced fixation may typically consist of a number of chemical and structural phases. These phases affect...
Thermal analysis of amorphous phases in hydroxyapatite coatings (1998)
Gross, Karlis A., Gross, Volfgangs, Berndt, Christopher C.
The amorphous phase in hydroxyapatite coatings has been examined by using X-ray diffractometry, Fourier transform infrared spectroscopy, optical microscopy, and thermal analysis methods. The...
Microstructural index to quantify thermal spray deposit microstructures using image analysis (1998)
Montavon, Ghislain, Coddet, Christian, Berndt, Christopher C., Leigh, Sang Ha
The basic metallographic analysis leads to qualitative interpretation of the structural characteristics of a microstructure, for example the presence of phases, and the description of singularities...
Mechanical properties of spray-formed composite structures (1998)
Brogan, Jeffrey A., Berndt, Christopher C., Claudon, A., Coddet, Christian
In this study, ethylene methacrylic acid copolymer (EMAA) was used as the matrix to produce EMAA/Al2O3 and EMAA/NiCr composite coatings from dry-blended powder mixtures. This work was conducted to...
Long-term engineering properties of recycled plastic lumber used in pier construction (1998)
Breslin, Vincent T., Senturk, Ufuk, Berndt, Christopher C.
Plastic lumber manufactured using post consumer waste plastic has been proposed as an acceptable material for use in the construction of docks, piers and bulkheads and is touted to outlast...
Ilavsky, Jan, Long, Gabrielle G., Allen, Andrew J., Herman, Herbert, Berndt, Christopher C.
Results for the microstructural characterization of thermal spray deposits, using small-angle neutron scattering (SANS), mercury-intrusion porosimetry, and image analysis of polished cross sections,...
Plasma sprayed ni-al coatings for safe ending heat exchanger tubes (1998)
Allan, Margaret L., Otterson, D., Berndt, Christopher C.
Brookhaven National Laboratory (BNL) has developed thermally conductive composite liners for corrosion and scale protection in heat exchanger tubes exposed to geothermal brine. The liners cannot...
Berndt, Christopher C., Brogan, Jeffrey A., Montavon, Ghislain, Claudon, A., Coddet, Christian
Polymeric composites, with either metallic or ceramic fillers, have been manufactured by thermal spray, and their mechanical properties have been measured. The advantage of this technology is that it...
Thermal spray processing of nanoscale materials: a conference report with extended abstract (1998)
Berndt, Christopher C., Lavernia, Enrique J.
Abstract not available.
Thermal conductivity of a zirconia thermal barrier coating (1998)
Slifka, Andrew J., Filla, B. James, Phelps, John M., Bancke, G. A., Berndt, Christopher C.
The conductivity of a thermal-barrier coating composed of atmospheric plasma sprayed 8 mass percent yttria partially stabilized zirconia has been measured. This coating was sprayed on a substrate of...
Porosity measurement and densification of plasma sprayed alumina-titania deposits (1998)
Murakami, Kenji, Leigh, Sang Ha, Berndt, Christopher C., Sampath, Sanjay, Herman, Herbert, ...
Abstract not available.
Thermal sprayed polymer coatings for corrosion protection in a biochemical treatment process (1998)
Allan, Margaret L., Berndt, Christopher C., Brogan, Jeffrey A., Otterson, D.
Thermal sprayed ethylene methacrylic acid (EMAA) and ethylene tetrafluoroethylene (ETFE) coatings were evaluated for corrosion protection in a biochemical process to treat geothermal residues....
Effects of thermal gradient and residual stresses on thermal barrier coating fracture (1998)
Qian, G., Nakamura, Toshio, Berndt, Christopher C.
Driving mechanisms which lead to internal crack growth and failure in the thermally sprayed coatings are identified using detailed finite element models. Coatings are assumed to contain embedded...
Berndt, Christopher C., Leigh, Sang Ha
Four-point bend tests with in situ acoustic emission (AE) were used to study the cracking behavior of alumina-3 % titania materials prepared by gas- and water-stabilized plasma technologies (GSP and...
Polymer coatings for corrosion protection in biochemical treatment of geothermal residues (1998)
Allan, Margaret L., Berndt, Christopher C., Otterson, D.
Ceramic-filled epoxy, ethylene methacrylic acid (EMAA) and ethylene tetrafluoroethylene (ETFE) coatings were evaluated for corrosion protection in a biochemical process to treat geothermal residues....
Nanomaterial deposits formed by DC plasma spraying of liquid feedstocks (1998)
Karthikeyan, Jeganathan, Berndt, Christopher C., Reddy, Sri, Wang, Jenn Yue, King, Alexander H., Herman, Herbert
An experimental system consisting of an axial feed plasma gun, a variable-rate liquid delivery system, a liquid atomizer-feeder, and a substrate movement and control system was designed and assembled...
Modelling of elastic constants of plasma spray deposits with spheroid-shaped voids (1998)
Leigh, Sang Ha, Lee, Gyu Chang, Berndt, Christopher C.
The five independent elastic constants of plasma spray deposits were calculated from constitutive equations and the microstructural information (void aspect ratios and porosity) were gained from...
Identification of the amorphous phase in plasma sprayed apatite coatings (1998)
Gross, Karlis A., Phillips, Matthew R., Ben-Nissan, B., Berndt, Christopher C.
Most hydroxyapatite coated implants produced by plasma spraying contain the amorphous phase which affects the longevity of the coatings. It is thus necessary to measure, locate and quantify this in...
Amorphous phase formation in plasma-sprayed hydroxyapatite coatings (1998)
Gross, Karlis A., Berndt, Christopher C., Herman, Herbert
The amorphous phase content of air plasma-sprayed hydroxyapatite coatings is dependent upon spraying and deposition conditions. X-ray diffraction and optical microscopy were used to investigate the...
Abbate, Agostino, Russell, W., Kotidis, Petros, Berndt, Christopher C.
A nondestructive laser-ultrasonic technique and instrumentation for simultaneously measuring the thickness and the elastic properties of ceramic plasma sprayed thermal barrier coatings (TBCs) is...
Indentation response of molybdenum disilicide (1998)
Newman, A., Jewett, Thomas J., Sampath, Sanjay, Berndt, Christopher C., Herman, Herbert
The influence of microstructure on the indentation cracking behavior of molybdenum disilicide (MoSi2) has been examined. The indentation response of samples produced by various methods has been...
Mercury intrusion porosimetry of plasma-sprayed ceramic (1997)
Ilavsky, Jan, Berndt, Christopher C., Karthikeyan, Jeganathan
Limitations and corrections for the application of mercury intrusion porosimetry (MIP) in measuring plasma-sprayed ceramic (alumina-titania) deposits are studied. The data reduction procedures of the...
Elastic response of thermal spray deposits under indentation tests (1997)
Leigh, Sang Ha, Lin, Chung Kwei, Berndt, Christopher C.
The elastic response behavior of thermal spray deposits at Knoop indentations has been investigated using indentation techniques. The ratio of hardness to elastic modulus, which is an important...
Characterization of the closed porosity in plasma-sprayed alumina (1997)
Ilavsky, Jan, Allen, Andrew J., Long, Gabrielle G., Herman, Herbert, Berndt, Christopher C.
The porous phase of plasma-sprayed alumina was characterized using mercury intrusion porosimetry, water immersion methods, and small-angle neutron scattering. A comparison of the results shows that...
Effect of substrate and bond coat on contact damage in zirconia-based plasma-sprayed coatings (1997)
Wuttiphan, S., Pajares, Antonia, Lawn, Brian R., Berndt, Christopher C.
This paper reports a Hertzian indentation study of damage modes in zirconia-based plasma-sprayed coatings on metal substrates, with and without bond coats. The structure of the study is as follows:...
Effects of the spray angle on splat morphology during thermal spraying (1997)
Montavon, Ghislain, Sampath, Sanjay, Berndt, Christopher C., Herman, Herbert, Coddet, Christian
The effects of spray angle on the morphology of thermally sprayed particles impinging on polished substrates have been studied by implementing several statistical tools (i.e., Gaussian analysis,...
Influence of spray angle on the pore and crack microstructure of plasma-sprayed deposits (1997)
Ilavsky, Jan, Allen, Andrew J., Long, Gabrielle G., Krueger, Susan, Berndt, Christopher C., Herman, Herbert
To understand the influence of processing parameters on the microstructure of plasma-sprayed deposits, small-angle neutron scattering measurements were made of the processing-parameter-dependent...
Tensile toughness test and high temperature fracture analysis of thermal barrier coatings (1997)
Qian, G., Nakamura, Toshio, Berndt, Christopher C., Leigh, Sang Ha
In this paper, an effective fracture toughness test which uses interface fracture mechanics theory is introduced. This method is ideally suited for determining fracture resistance of multilayered...
Mercury intrusion porosimetry of plasma-sprayed ceramic (1997)
Ilavsky, Jan, Berndt, Christopher C., Karthikeyan, Jeganathan
Limitations and corrections for the application of mercury intrusion porosimetry (MIP) in measuring plasma-sprayed ceramic (alumina-titania) deposits are studied. The data reduction procedures of the...
Elastic response of thermal spray deposits under indentation tests (1997)
Leigh, Sang Ha, Lin, Chung Kwei, Berndt, Christopher C.
The elastic response behavior of thermal spray deposits at Knoop indentations has been investigated using indentation techniques. The ratio of hardness to elastic modulus, which is an important...
Characterization of the closed porosity in plasma-sprayed alumina (1997)
Ilavsky, Jan, Allen, Andrew J., Long, Gabrielle G., Herman, Herbert, Berndt, Christopher C.
The porous phase of plasma-sprayed alumina was characterized using mercury intrusion porosimetry, water immersion methods, and small-angle neutron scattering. A comparison of the results shows that...
Effect of substrate and bond coat on contact damage in zirconia-based plasma-sprayed coatings (1997)
Wuttiphan, S., Pajares, Antonia, Lawn, Brian R., Berndt, Christopher C.
This paper reports a Hertzian indentation study of damage modes in zirconia-based plasma-sprayed coatings on metal substrates, with and without bond coats. The structure of the study is as follows:...
Effects of the spray angle on splat morphology during thermal spraying (1997)
Montavon, Ghislain, Sampath, Sanjay, Berndt, Christopher C., Herman, Herbert, Coddet, Christian
The effects of spray angle on the morphology of thermally sprayed particles impinging on polished substrates have been studied by implementing several statistical tools (i.e., Gaussian analysis,...
Influence of spray angle on the pore and crack microstructure of plasma-sprayed deposits (1997)
Ilavsky, Jan, Allen, Andrew J., Long, Gabrielle G., Krueger, Susan, Berndt, Christopher C., Herman, Herbert
To understand the influence of processing parameters on the microstructure of plasma-sprayed deposits, small-angle neutron scattering measurements were made of the processing-parameter-dependent...
Tensile toughness test and high temperature fracture analysis of thermal barrier coatings (1997)
Qian, G., Nakamura, Toshio, Berndt, Christopher C., Leigh, Sang Ha
In this paper, an effective fracture toughness test which uses interface fracture mechanics theory is introduced. This method is ideally suited for determining fracture resistance of multilayered...
Evaluation of off-angle thermal spray (1997)
Leigh, Sang Ha, Berndt, Christopher C.
The effect of spray angle on the properties of plasma spray deposits has been investigated. Two different materials, NiAl and Cr3C2-NiCr, were sprayed at angles from 50 to 90° with respect to...
Alumina-base plasma-sprayed materials, part II: phase transformations in aluminas (1997)
Ilavsky, Jan, Berndt, Christopher C., Herman, Herbert, Chraska, Pavel J., Dubsky, Jiri
Aluminum oxide is widely used for plasma spraying. Alumina deposits consist of a number of metastable crystallographic modifications, which at elevated temperatures, transform to the stable α...
The coalescence of combustion-sprayed ethylene-methacrylic acid copolymer (1997)
Brogan, Jeffrey A., Berndt, Christopher C.
A design of experiments approach was employed to study the coalescence of combustion-sprayed ethylene methacrylic acid copolymer (EMAA). The powder feed rate, stand-off distance, substrate...
Lin, Chung Kwei, Berndt, Christopher C., Leigh, Sang Ha, Murakami, Kenji
Free-standing alumina-13% titania samples were manufactured with a water-stabilized plasma spray gun to a thickness of ∼5 mm. A thin layer of aluminum was arc sprayed prior to depositing the...
Montavon, Ghislain, Berndt, Christopher C., Coddet, Christian, Sampath, Sanjay, Herman, Herbert
A simple heuristic model was developed to demonstrate the major characteristics of impinging particles prior to impact and during the spreading stages. It is based on the determination of transfer...
In vitro changes of hydroxyapatite coatings (1997)
Gross, Karlis A., Berndt, Christopher C., Goldschlag, Dale D., Iacono, Vincent J.
The stability and degradability of hydroxyapatite coatings on dental implants depends on the dissolution of the individual chemical phases. Hydroxyapatite-coated dental implants exhibit a range of...
Acoustic emission responses of plasma-sprayed alumina-3% titania deposits (1997)
Lin, Chung Chieh, Leigh, Sang Ha, Berndt, Christopher C.
Free standing alumina-3% titania samples were prepared by gas- and water-stabilized plasma (GSP and WSP) spraying. These free standing forms consisted of metastable γ- and δ-alumina, as...
Characteristics of the liquid flame spray process (1997)
Tikkanen, Juha, Gross, Karlis A., Berndt, Christopher C., Pitkanen, V., Keskinen, Jorma, Raghu, Surya, ...
Liquid flame spraying (LFS) is a new thermal spray process. Liquid feedstock is injected and atomized in an oxygen-hydrogen flame where the liquid phase is evaporated and thermochemical reactions are...
Plasma spray synthesis of nanomaterial powders and deposits (1997)
Karthikeyan, Jeganathan, Berndt, Christopher C., Tikkanen, Juha, Reddy, Sri, Herman, Herbert
Conventional plasma spraying was used to process atomized liquid droplets of precursor solutions to produce alumina, zirconia and yttria stabilized zirconia nanoparticles and deposits. An...
Preparation of nanophase materials by thermal spray processing of liquid precursors (1997)
Karthikeyan, Jeganathan, Berndt, Christopher C., Tikkanen, Juha, Wang, Jenn Yue, King, Alexander H., Herman, Herbert
Thermal spray processes were modified to spray liquid feedstocks. Nanophase AI2O3, Mn2O3, ZrO2 and Y2O3 stabilized ZrO2 powders and deposits were produced. Ceramic particles of 1-150 nm size were...
Nanomaterial powders and deposits prepared by flame spray processing of liquid precursors (1997)
Karthikeyan, Jeganathan, Berndt, Christopher C., Tikkanen, Juha, Wang, Jenn Yue, King, Alexander H., Herman, Herbert
Ultrafine grained Al2O3, Mn2O3, ZrO2 and Y2O3-ZrO2 powders and deposits were produced by flame spray processing of atomized precursor solutions. Ceramic particles of 1-150nm size were collected on an...
Evaluation of off-angle thermal spray (1997)
Leigh, Sang Ha, Berndt, Christopher C.
The effect of spray angle on the properties of plasma spray deposits has been investigated. Two different materials, NiAl and Cr3C2-NiCr, were sprayed at angles from 50 to 90° with respect to...
Alumina-base plasma-sprayed materials, part II: phase transformations in aluminas (1997)
Ilavsky, Jan, Berndt, Christopher C., Herman, Herbert, Chraska, Pavel J., Dubsky, Jiri
Aluminum oxide is widely used for plasma spraying. Alumina deposits consist of a number of metastable crystallographic modifications, which at elevated temperatures, transform to the stable α...
The coalescence of combustion-sprayed ethylene-methacrylic acid copolymer (1997)
Brogan, Jeffrey A., Berndt, Christopher C.
A design of experiments approach was employed to study the coalescence of combustion-sprayed ethylene methacrylic acid copolymer (EMAA). The powder feed rate, stand-off distance, substrate...
Lin, Chung Kwei, Berndt, Christopher C., Leigh, Sang Ha, Murakami, Kenji
Free-standing alumina-13% titania samples were manufactured with a water-stabilized plasma spray gun to a thickness of ∼5 mm. A thin layer of aluminum was arc sprayed prior to depositing the...
Montavon, Ghislain, Berndt, Christopher C., Coddet, Christian, Sampath, Sanjay, Herman, Herbert
A simple heuristic model was developed to demonstrate the major characteristics of impinging particles prior to impact and during the spreading stages. It is based on the determination of transfer...
In vitro changes of hydroxyapatite coatings (1997)
Gross, Karlis A., Berndt, Christopher C., Goldschlag, Dale D., Iacono, Vincent J.
The stability and degradability of hydroxyapatite coatings on dental implants depends on the dissolution of the individual chemical phases. Hydroxyapatite-coated dental implants exhibit a range of...
Acoustic emission responses of plasma-sprayed alumina-3% titania deposits (1997)
Lin, Chung Chieh, Leigh, Sang Ha, Berndt, Christopher C.
Free standing alumina-3% titania samples were prepared by gas- and water-stabilized plasma (GSP and WSP) spraying. These free standing forms consisted of metastable γ- and δ-alumina, as...
Characteristics of the liquid flame spray process (1997)
Tikkanen, Juha, Gross, Karlis A., Berndt, Christopher C., Pitkanen, V., Keskinen, Jorma, Raghu, Surya, ...
Liquid flame spraying (LFS) is a new thermal spray process. Liquid feedstock is injected and atomized in an oxygen-hydrogen flame where the liquid phase is evaporated and thermochemical reactions are...
Plasma spray synthesis of nanomaterial powders and deposits (1997)
Karthikeyan, Jeganathan, Berndt, Christopher C., Tikkanen, Juha, Reddy, Sri, Herman, Herbert
Conventional plasma spraying was used to process atomized liquid droplets of precursor solutions to produce alumina, zirconia and yttria stabilized zirconia nanoparticles and deposits. An...
Preparation of nanophase materials by thermal spray processing of liquid precursors (1997)
Karthikeyan, Jeganathan, Berndt, Christopher C., Tikkanen, Juha, Wang, Jenn Yue, King, Alexander H., Herman, Herbert
Thermal spray processes were modified to spray liquid feedstocks. Nanophase AI2O3, Mn2O3, ZrO2 and Y2O3 stabilized ZrO2 powders and deposits were produced. Ceramic particles of 1-150 nm size were...
Nanomaterial powders and deposits prepared by flame spray processing of liquid precursors (1997)
Karthikeyan, Jeganathan, Berndt, Christopher C., Tikkanen, Juha, Wang, Jenn Yue, King, Alexander H., Herman, Herbert
Ultrafine grained Al2O3, Mn2O3, ZrO2 and Y2O3-ZrO2 powders and deposits were produced by flame spray processing of atomized precursor solutions. Ceramic particles of 1-150nm size were collected on an...
Mercury intrusion porosimetry of plasma-sprayed ceramic (1997)
Ilavsky, Jan, Berndt, Christopher C., Karthikeyan, Jeganathan
Limitations and corrections for the application of mercury intrusion porosimetry (MIP) in measuring plasma-sprayed ceramic (alumina-titania) deposits are studied. The data reduction procedures of the...
Elastic response of thermal spray deposits under indentation tests (1997)
Leigh, Sang Ha, Lin, Chung Kwei, Berndt, Christopher C.
The elastic response behavior of thermal spray deposits at Knoop indentations has been investigated using indentation techniques. The ratio of hardness to elastic modulus, which is an important...
Characterization of the closed porosity in plasma-sprayed alumina (1997)
Ilavsky, Jan, Allen, Andrew J., Long, Gabrielle G., Herman, Herbert, Berndt, Christopher C.
The porous phase of plasma-sprayed alumina was characterized using mercury intrusion porosimetry, water immersion methods, and small-angle neutron scattering. A comparison of the results shows that...
Effect of substrate and bond coat on contact damage in zirconia-based plasma-sprayed coatings (1997)
Wuttiphan, S., Pajares, Antonia, Lawn, Brian R., Berndt, Christopher C.
This paper reports a Hertzian indentation study of damage modes in zirconia-based plasma-sprayed coatings on metal substrates, with and without bond coats. The structure of the study is as follows:...
Effects of the spray angle on splat morphology during thermal spraying (1997)
Montavon, Ghislain, Sampath, Sanjay, Berndt, Christopher C., Herman, Herbert, Coddet, Christian
The effects of spray angle on the morphology of thermally sprayed particles impinging on polished substrates have been studied by implementing several statistical tools (i.e., Gaussian analysis,...
Influence of spray angle on the pore and crack microstructure of plasma-sprayed deposits (1997)
Ilavsky, Jan, Allen, Andrew J., Long, Gabrielle G., Krueger, Susan, Berndt, Christopher C., Herman, Herbert
To understand the influence of processing parameters on the microstructure of plasma-sprayed deposits, small-angle neutron scattering measurements were made of the processing-parameter-dependent...
Tensile toughness test and high temperature fracture analysis of thermal barrier coatings (1997)
Qian, G., Nakamura, Toshio, Berndt, Christopher C., Leigh, Sang Ha
In this paper, an effective fracture toughness test which uses interface fracture mechanics theory is introduced. This method is ideally suited for determining fracture resistance of multilayered...
Evaluation of off-angle thermal spray (1997)
Leigh, Sang Ha, Berndt, Christopher C.
The effect of spray angle on the properties of plasma spray deposits has been investigated. Two different materials, NiAl and Cr3C2-NiCr, were sprayed at angles from 50 to 90° with respect to...
Alumina-base plasma-sprayed materials, part II: phase transformations in aluminas (1997)
Ilavsky, Jan, Berndt, Christopher C., Herman, Herbert, Chraska, Pavel J., Dubsky, Jiri
Aluminum oxide is widely used for plasma spraying. Alumina deposits consist of a number of metastable crystallographic modifications, which at elevated temperatures, transform to the stable α...
The coalescence of combustion-sprayed ethylene-methacrylic acid copolymer (1997)
Brogan, Jeffrey A., Berndt, Christopher C.
A design of experiments approach was employed to study the coalescence of combustion-sprayed ethylene methacrylic acid copolymer (EMAA). The powder feed rate, stand-off distance, substrate...
Lin, Chung Kwei, Berndt, Christopher C., Leigh, Sang Ha, Murakami, Kenji
Free-standing alumina-13% titania samples were manufactured with a water-stabilized plasma spray gun to a thickness of ∼5 mm. A thin layer of aluminum was arc sprayed prior to depositing the...
Montavon, Ghislain, Berndt, Christopher C., Coddet, Christian, Sampath, Sanjay, Herman, Herbert
A simple heuristic model was developed to demonstrate the major characteristics of impinging particles prior to impact and during the spreading stages. It is based on the determination of transfer...
In vitro changes of hydroxyapatite coatings (1997)
Gross, Karlis A., Berndt, Christopher C., Goldschlag, Dale D., Iacono, Vincent J.
The stability and degradability of hydroxyapatite coatings on dental implants depends on the dissolution of the individual chemical phases. Hydroxyapatite-coated dental implants exhibit a range of...
Acoustic emission responses of plasma-sprayed alumina-3% titania deposits (1997)
Lin, Chung Chieh, Leigh, Sang Ha, Berndt, Christopher C.
Free standing alumina-3% titania samples were prepared by gas- and water-stabilized plasma (GSP and WSP) spraying. These free standing forms consisted of metastable γ- and δ-alumina, as...
Characteristics of the liquid flame spray process (1997)
Tikkanen, Juha, Gross, Karlis A., Berndt, Christopher C., Pitkanen, V., Keskinen, Jorma, Raghu, Surya, ...
Liquid flame spraying (LFS) is a new thermal spray process. Liquid feedstock is injected and atomized in an oxygen-hydrogen flame where the liquid phase is evaporated and thermochemical reactions are...
Plasma spray synthesis of nanomaterial powders and deposits (1997)
Karthikeyan, Jeganathan, Berndt, Christopher C., Tikkanen, Juha, Reddy, Sri, Herman, Herbert
Conventional plasma spraying was used to process atomized liquid droplets of precursor solutions to produce alumina, zirconia and yttria stabilized zirconia nanoparticles and deposits. An...
Preparation of nanophase materials by thermal spray processing of liquid precursors (1997)
Karthikeyan, Jeganathan, Berndt, Christopher C., Tikkanen, Juha, Wang, Jenn Yue, King, Alexander H., Herman, Herbert
Thermal spray processes were modified to spray liquid feedstocks. Nanophase AI2O3, Mn2O3, ZrO2 and Y2O3 stabilized ZrO2 powders and deposits were produced. Ceramic particles of 1-150 nm size were...
Nanomaterial powders and deposits prepared by flame spray processing of liquid precursors (1997)
Karthikeyan, Jeganathan, Berndt, Christopher C., Tikkanen, Juha, Wang, Jenn Yue, King, Alexander H., Herman, Herbert
Ultrafine grained Al2O3, Mn2O3, ZrO2 and Y2O3-ZrO2 powders and deposits were produced by flame spray processing of atomized precursor solutions. Ceramic particles of 1-150nm size were collected on an...
Concept of functionally graded materials for advanced thermal barrier coating applications (1996)
Lee, Woo Young, Stinton, David P., Berndt, Christopher C., Erdogan, Fazil, Lee, Yi Der, Mutasim, Zaher Z.
This feature article explores the concept of creating functionally graded metal-ceramic composite microstructures for thermal barrier coatings used in gas-turbine applications. From a...
Contact damage in plasma-sprayed alumina-based coatings (1996)
Pajares, Antonia, Wei, Lanhua, Lawn, Brian R., Berndt, Christopher C.
A study of Hertzian contact damage in plasma-sprayed alumina-based ceramic coatings on steel substrates has been made. Presectioned specimens are used to identity subsurface micromechanical damage...
Concept of functionally graded materials for advanced thermal barrier coating applications (1996)
Lee, Woo Young, Stinton, David P., Berndt, Christopher C., Erdogan, Fazil, Lee, Yi Der, Mutasim, Zaher Z.
This feature article explores the concept of creating functionally graded metal-ceramic composite microstructures for thermal barrier coatings used in gas-turbine applications. From a...
Contact damage in plasma-sprayed alumina-based coatings (1996)
Pajares, Antonia, Wei, Lanhua, Lawn, Brian R., Berndt, Christopher C.
A study of Hertzian contact damage in plasma-sprayed alumina-based ceramic coatings on steel substrates has been made. Presectioned specimens are used to identity subsurface micromechanical damage...
Structural changes of thermally sprayed hydroxyapatite investigated by Rietveld analysis (1996)
Knowles, Jonathan Campbell, Gross, Karlis A., Berndt, Christopher C., Bonfield, William
Hydroxyapatite (HA) coatings were prepared by three thermal spraying methods: flame spraying, high velocity oxygen fuel spraying and plasma spraying. The HA was then examined by Rietveld analysis...
Acoustic emission responses of plasma sprayed ceramics during four point bend tests (1996)
Lin, Chung Kwei, Leigh, Sang Ha, Berndt, Christopher C., Gansert, Robert V., Sampath, Sanjay, Herman, Herbert
Free standing ceramics including alumina-13 wt.% titania (AT13), alumina-3 wt.% titania (AT3), alumina-40 wt.% zirconia (AZ40), and calcia-stabilized zirconia (CSZ), were produced by water-stabilized...
Lee, Woo Young, Cooley, Kevin M., Berndt, Christopher C., Joslin, Debra L., Stinton, David P.
The potential application of Ca0.5Sr0.5Zr4P6O24 (CS50) as a corrosion-resistant coating material for Si-based ceramics and as a thermal barrier coating material for Ni-based superalloys was explored....
Lin, Chung Kwei, Leigh, Sang Ha, Gansert, Robert V., Murakami, Kenji, Sampath, Sanjay, Herman, Herbert, ...
Free standing alumina-13% titania samples were manufactured using high power water stabilized plasma spraying. Heat treatment was performed at 1450°C for 24 hours and then at 1100°C for...
Pajares, Antonia, Wei, Lanhua, Lawn, Brian R., Padture, Nitin P., Berndt, Christopher C.
Hertzian indentation testing is used to generate contact damage in plasma sprayed ceramic coatings on metal substrates. Two basic ceramic/metal coating/substrate systems are examined: alumina on...
Structural changes of thermally sprayed hydroxyapatite investigated by Rietveld analysis (1996)
Knowles, Jonathan Campbell, Gross, Karlis A., Berndt, Christopher C., Bonfield, William
Hydroxyapatite (HA) coatings were prepared by three thermal spraying methods: flame spraying, high velocity oxygen fuel spraying and plasma spraying. The HA was then examined by Rietveld analysis...
Acoustic emission responses of plasma sprayed ceramics during four point bend tests (1996)
Lin, Chung Kwei, Leigh, Sang Ha, Berndt, Christopher C., Gansert, Robert V., Sampath, Sanjay, Herman, Herbert
Free standing ceramics including alumina-13 wt.% titania (AT13), alumina-3 wt.% titania (AT3), alumina-40 wt.% zirconia (AZ40), and calcia-stabilized zirconia (CSZ), were produced by water-stabilized...
Lee, Woo Young, Cooley, Kevin M., Berndt, Christopher C., Joslin, Debra L., Stinton, David P.
The potential application of Ca0.5Sr0.5Zr4P6O24 (CS50) as a corrosion-resistant coating material for Si-based ceramics and as a thermal barrier coating material for Ni-based superalloys was explored....
Lin, Chung Kwei, Leigh, Sang Ha, Gansert, Robert V., Murakami, Kenji, Sampath, Sanjay, Herman, Herbert, ...
Free standing alumina-13% titania samples were manufactured using high power water stabilized plasma spraying. Heat treatment was performed at 1450°C for 24 hours and then at 1100°C for...
Pajares, Antonia, Wei, Lanhua, Lawn, Brian R., Padture, Nitin P., Berndt, Christopher C.
Hertzian indentation testing is used to generate contact damage in plasma sprayed ceramic coatings on metal substrates. Two basic ceramic/metal coating/substrate systems are examined: alumina on...
Concept of functionally graded materials for advanced thermal barrier coating applications (1996)
Lee, Woo Young, Stinton, David P., Berndt, Christopher C., Erdogan, Fazil, Lee, Yi Der, Mutasim, Zaher Z.
This feature article explores the concept of creating functionally graded metal-ceramic composite microstructures for thermal barrier coatings used in gas-turbine applications. From a...
Contact damage in plasma-sprayed alumina-based coatings (1996)
Pajares, Antonia, Wei, Lanhua, Lawn, Brian R., Berndt, Christopher C.
A study of Hertzian contact damage in plasma-sprayed alumina-based ceramic coatings on steel substrates has been made. Presectioned specimens are used to identity subsurface micromechanical damage...
Structural changes of thermally sprayed hydroxyapatite investigated by Rietveld analysis (1996)
Knowles, Jonathan Campbell, Gross, Karlis A., Berndt, Christopher C., Bonfield, William
Hydroxyapatite (HA) coatings were prepared by three thermal spraying methods: flame spraying, high velocity oxygen fuel spraying and plasma spraying. The HA was then examined by Rietveld analysis...
Acoustic emission responses of plasma sprayed ceramics during four point bend tests (1996)
Lin, Chung Kwei, Leigh, Sang Ha, Berndt, Christopher C., Gansert, Robert V., Sampath, Sanjay, Herman, Herbert
Free standing ceramics including alumina-13 wt.% titania (AT13), alumina-3 wt.% titania (AT3), alumina-40 wt.% zirconia (AZ40), and calcia-stabilized zirconia (CSZ), were produced by water-stabilized...
Lee, Woo Young, Cooley, Kevin M., Berndt, Christopher C., Joslin, Debra L., Stinton, David P.
The potential application of Ca0.5Sr0.5Zr4P6O24 (CS50) as a corrosion-resistant coating material for Si-based ceramics and as a thermal barrier coating material for Ni-based superalloys was explored....
Lin, Chung Kwei, Leigh, Sang Ha, Gansert, Robert V., Murakami, Kenji, Sampath, Sanjay, Herman, Herbert, ...
Free standing alumina-13% titania samples were manufactured using high power water stabilized plasma spraying. Heat treatment was performed at 1450°C for 24 hours and then at 1100°C for...
Pajares, Antonia, Wei, Lanhua, Lawn, Brian R., Padture, Nitin P., Berndt, Christopher C.
Hertzian indentation testing is used to generate contact damage in plasma sprayed ceramic coatings on metal substrates. Two basic ceramic/metal coating/substrate systems are examined: alumina on...
Optimization of thermal spray parameters for cathodic protection of reinforcement in concrete (1995)
Abstract not available.
Effects of vacuum plasma spray processing parameters on splat morphology (1995)
Montavon, Ghislain, Sampath, Sanjay, Berndt, Christopher C., Herman, Herbert, Coddet, Christian
Several statistical tools (i.e., Gaussian and Weibull distribution analyses, the t-test, and analysis of the variance) were used to examine relationships between vacuum plasma spray processing...
The amorphous phase in plasma sprayed hydroxyapatite coatings (1995)
Gross, Karlis A., Berndt, Christopher C.
Atmospheric plasma spraying of hydroxyapatite was carried out to investigate the influence of the plasma spraying parameters on the formation of the amorphous phase. The amorphous phase was...
Statistical analysis of microhardness variations in thermal spray coatings (1995)
Lin, Chung Ku, Berndt, Christopher C.
A thermal barrier coating system consisting of a NiCoCrAlY bond coat and cerium-stabilized zirconia ceramic coating was sprayed on to a metallic substrate. Ageing at 400 and 800°C for 100, 500,...
Simulation of hardness testing on plasma-sprayed coatings (1995)
Lin, Chung Kwei, Lin, Chung Chieh, Berndt, Christopher C.
A plasma-sprayed thermal barrier coating consisting of a NiCoCrAlY bond coat and Ce-stabilized zirconia ceramic coating was heat-treated at 400 degrees C for 1000 h, Microhardness measurements were...
Optimization of thermal spray parameters for cathodic protection of reinforcement in concrete (1995)
Abstract not available.
Effects of vacuum plasma spray processing parameters on splat morphology (1995)
Montavon, Ghislain, Sampath, Sanjay, Berndt, Christopher C., Herman, Herbert, Coddet, Christian
Several statistical tools (i.e., Gaussian and Weibull distribution analyses, the t-test, and analysis of the variance) were used to examine relationships between vacuum plasma spray processing...
The amorphous phase in plasma sprayed hydroxyapatite coatings (1995)
Gross, Karlis A., Berndt, Christopher C.
Atmospheric plasma spraying of hydroxyapatite was carried out to investigate the influence of the plasma spraying parameters on the formation of the amorphous phase. The amorphous phase was...
Statistical analysis of microhardness variations in thermal spray coatings (1995)
Lin, Chung Ku, Berndt, Christopher C.
A thermal barrier coating system consisting of a NiCoCrAlY bond coat and cerium-stabilized zirconia ceramic coating was sprayed on to a metallic substrate. Ageing at 400 and 800°C for 100, 500,...
Simulation of hardness testing on plasma-sprayed coatings (1995)
Lin, Chung Kwei, Lin, Chung Chieh, Berndt, Christopher C.
A plasma-sprayed thermal barrier coating consisting of a NiCoCrAlY bond coat and Ce-stabilized zirconia ceramic coating was heat-treated at 400 degrees C for 1000 h, Microhardness measurements were...
Real-time imaging of the plasma spray process: work in progress (1995)
Brogan, Jeffrey A., Berndt, Christopher C., Smith, W. C. S., Gansert, Robert V., Raghu, Surya, Sampath, Sanjay, ...
A LaserStrobe Control Vision system was employed to examine water-stabilized plasma (WSP), gas-stabilized plasma (GSP), and single-wire arc plasma (SWAP) technologies. Visualization of the plasma...
Knowles, Jonathan Campbell, Gross, Karlis A., Berndt, Christopher C., Bonfield, William
HA is commonly applied to orthopaedic implants by thermal spraying. The thermal spraying methods used induce differences, not only in the macroscopic and microscopic properties of the coating, but...
Sugama, Toshifumi, Kawase, Ryoichi, Berndt, Christopher C., Herman, Herbert
Using a flame spray coating process, the methacrylic acid-modified poly(ethylene) copolymer was overlaid onto cold rolled steel surfaces. An appropriate setting of the rate of air flow led to the...
Change in hydroxyapatite coating crystallinity after culture with osteoblasts (1995)
Melican, Mora, Gross, Karlis A., Berndt, Christopher C., Maxian, Suzanne
Enhanced bone attachment to orthopaedic implants is obtained with the use of bioactive hydroxyapatite (HA) coatings. Osteoblast cells attached to both low and high crystalline HA coatings, and did...
Real-time imaging of the plasma spray process: work in progress (1995)
Brogan, Jeffrey A., Berndt, Christopher C., Smith, W. C. S., Gansert, Robert V., Raghu, Surya, Sampath, Sanjay, ...
A LaserStrobe Control Vision system was employed to examine water-stabilized plasma (WSP), gas-stabilized plasma (GSP), and single-wire arc plasma (SWAP) technologies. Visualization of the plasma...
Knowles, Jonathan Campbell, Gross, Karlis A., Berndt, Christopher C., Bonfield, William
HA is commonly applied to orthopaedic implants by thermal spraying. The thermal spraying methods used induce differences, not only in the macroscopic and microscopic properties of the coating, but...
Sugama, Toshifumi, Kawase, Ryoichi, Berndt, Christopher C., Herman, Herbert
Using a flame spray coating process, the methacrylic acid-modified poly(ethylene) copolymer was overlaid onto cold rolled steel surfaces. An appropriate setting of the rate of air flow led to the...
Change in hydroxyapatite coating crystallinity after culture with osteoblasts (1995)
Melican, Mora, Gross, Karlis A., Berndt, Christopher C., Maxian, Suzanne
Enhanced bone attachment to orthopaedic implants is obtained with the use of bioactive hydroxyapatite (HA) coatings. Osteoblast cells attached to both low and high crystalline HA coatings, and did...
Optimization of thermal spray parameters for cathodic protection of reinforcement in concrete (1995)
Abstract not available.
Effects of vacuum plasma spray processing parameters on splat morphology (1995)
Montavon, Ghislain, Sampath, Sanjay, Berndt, Christopher C., Herman, Herbert, Coddet, Christian
Several statistical tools (i.e., Gaussian and Weibull distribution analyses, the t-test, and analysis of the variance) were used to examine relationships between vacuum plasma spray processing...
The amorphous phase in plasma sprayed hydroxyapatite coatings (1995)
Gross, Karlis A., Berndt, Christopher C.
Atmospheric plasma spraying of hydroxyapatite was carried out to investigate the influence of the plasma spraying parameters on the formation of the amorphous phase. The amorphous phase was...
Statistical analysis of microhardness variations in thermal spray coatings (1995)
Lin, Chung Ku, Berndt, Christopher C.
A thermal barrier coating system consisting of a NiCoCrAlY bond coat and cerium-stabilized zirconia ceramic coating was sprayed on to a metallic substrate. Ageing at 400 and 800°C for 100, 500,...
Simulation of hardness testing on plasma-sprayed coatings (1995)
Lin, Chung Kwei, Lin, Chung Chieh, Berndt, Christopher C.
A plasma-sprayed thermal barrier coating consisting of a NiCoCrAlY bond coat and Ce-stabilized zirconia ceramic coating was heat-treated at 400 degrees C for 1000 h, Microhardness measurements were...
Real-time imaging of the plasma spray process: work in progress (1995)
Brogan, Jeffrey A., Berndt, Christopher C., Smith, W. C. S., Gansert, Robert V., Raghu, Surya, Sampath, Sanjay, ...
A LaserStrobe Control Vision system was employed to examine water-stabilized plasma (WSP), gas-stabilized plasma (GSP), and single-wire arc plasma (SWAP) technologies. Visualization of the plasma...
Knowles, Jonathan Campbell, Gross, Karlis A., Berndt, Christopher C., Bonfield, William
HA is commonly applied to orthopaedic implants by thermal spraying. The thermal spraying methods used induce differences, not only in the macroscopic and microscopic properties of the coating, but...
Sugama, Toshifumi, Kawase, Ryoichi, Berndt, Christopher C., Herman, Herbert
Using a flame spray coating process, the methacrylic acid-modified poly(ethylene) copolymer was overlaid onto cold rolled steel surfaces. An appropriate setting of the rate of air flow led to the...
Change in hydroxyapatite coating crystallinity after culture with osteoblasts (1995)
Melican, Mora, Gross, Karlis A., Berndt, Christopher C., Maxian, Suzanne
Enhanced bone attachment to orthopaedic implants is obtained with the use of bioactive hydroxyapatite (HA) coatings. Osteoblast cells attached to both low and high crystalline HA coatings, and did...
Measurement and analysis of adhesion strength for thermally sprayed coatings (1994)
Lin, Chung Ku, Berndt, Christopher C.
Thermally sprayed coatings have a distinctive microstructure which can be described as 'a three dimensional layered structure of discs which are interlaced to form a material of composite nature.'...
Structural changes of plasma sprayed hydroxyapatite coatings during in-vitro testing (1994)
Gross, Karlis A., Berndt, Christopher C.
The in-vitro behavior of hydroxyapatite (HAp) coatings depends on the thermal history of the coating after thermal spraying. As-sprayed amorphous coatings degrade in Ringer's solution. Heat treatment...
In vitro testing of plasma-sprayed hydroxyapatite coatings (1994)
Gross, Karlis A., Berndt, Christopher C.
Hydroxyapatite-coated coupons were tested in various physiological media. Immersion in Ringer's solution showed that heat-treated coatings displayed a weight gain but the as-sprayed coatings...
Conferences and meetings: who's holding the gun? (1994)
Abstract not available.
Test for coating adhesion on flat substrates: a technical note (1994)
Leigh, Sang Ha, Berndt, Christopher C.
The standard tensile adhesion test (TAT), ASTM C633, has been modified to perform multiple tests on flat and wide substrates. The TAT geometry, which specifies a 1-in. (25.4-mm)-diameter cylindrical...
Measurement and analysis of adhesion strength for thermally sprayed coatings (1994)
Lin, Chung Ku, Berndt, Christopher C.
Thermally sprayed coatings have a distinctive microstructure which can be described as 'a three dimensional layered structure of discs which are interlaced to form a material of composite nature.'...
Structural changes of plasma sprayed hydroxyapatite coatings during in-vitro testing (1994)
Gross, Karlis A., Berndt, Christopher C.
The in-vitro behavior of hydroxyapatite (HAp) coatings depends on the thermal history of the coating after thermal spraying. As-sprayed amorphous coatings degrade in Ringer's solution. Heat treatment...
In vitro testing of plasma-sprayed hydroxyapatite coatings (1994)
Gross, Karlis A., Berndt, Christopher C.
Hydroxyapatite-coated coupons were tested in various physiological media. Immersion in Ringer's solution showed that heat-treated coatings displayed a weight gain but the as-sprayed coatings...
Conferences and meetings: who's holding the gun? (1994)
Abstract not available.
Test for coating adhesion on flat substrates: a technical note (1994)
Leigh, Sang Ha, Berndt, Christopher C.
The standard tensile adhesion test (TAT), ASTM C633, has been modified to perform multiple tests on flat and wide substrates. The TAT geometry, which specifies a 1-in. (25.4-mm)-diameter cylindrical...
Measurement and analysis of adhesion strength for thermally sprayed coatings (1994)
Lin, Chung Ku, Berndt, Christopher C.
Thermally sprayed coatings have a distinctive microstructure which can be described as 'a three dimensional layered structure of discs which are interlaced to form a material of composite nature.'...
Structural changes of plasma sprayed hydroxyapatite coatings during in-vitro testing (1994)
Gross, Karlis A., Berndt, Christopher C.
The in-vitro behavior of hydroxyapatite (HAp) coatings depends on the thermal history of the coating after thermal spraying. As-sprayed amorphous coatings degrade in Ringer's solution. Heat treatment...
In vitro testing of plasma-sprayed hydroxyapatite coatings (1994)
Gross, Karlis A., Berndt, Christopher C.
Hydroxyapatite-coated coupons were tested in various physiological media. Immersion in Ringer's solution showed that heat-treated coatings displayed a weight gain but the as-sprayed coatings...
Conferences and meetings: who's holding the gun? (1994)
Abstract not available.
Test for coating adhesion on flat substrates: a technical note (1994)
Leigh, Sang Ha, Berndt, Christopher C.
The standard tensile adhesion test (TAT), ASTM C633, has been modified to perform multiple tests on flat and wide substrates. The TAT geometry, which specifies a 1-in. (25.4-mm)-diameter cylindrical...
Measurement of adhesion for thermally sprayed materials (1993)
Berndt, Christopher C., Lin, Chung Ku
Thermally sprayed coatings have a distinctive microstructure which can be described as 'a three-dimensional layered structure of discs which are interlaced to form a material of composite nature'....
Measurement of adhesion for thermally sprayed materials (1993)
Berndt, Christopher C., Lin, Chung Ku
Thermally sprayed coatings have a distinctive microstructure which can be described as 'a three-dimensional layered structure of discs which are interlaced to form a material of composite nature'....
Measurement of adhesion for thermally sprayed materials (1993)
Berndt, Christopher C., Lin, Chung Ku
Thermally sprayed coatings have a distinctive microstructure which can be described as 'a three-dimensional layered structure of discs which are interlaced to form a material of composite nature'....
Wear of coatings in wool-severing applications (1992)
Mair, R. H., Berndt, Christopher C.
Various surface treatments; including thermally sprayed ceramic coatings, titanium nitride (TiN) deposited by physical vapour deposition and nitrogen implantation processes, have been applied to...
Current problems in plasma spray processing (1992)
Berndt, Christopher C., Brindley, William J., Goland, Allen N., Herman, Herbert, Houck, David L., Jones, K. W., ...
This article summarizes eight contributions from a thermal spray conference that was held in late 1991 at Brookhaven National Laboratory, Upton, Long Island, New York. Plasma spray processing is...
Wear of coatings in wool-severing applications (1992)
Mair, R. H., Berndt, Christopher C.
Various surface treatments; including thermally sprayed ceramic coatings, titanium nitride (TiN) deposited by physical vapour deposition and nitrogen implantation processes, have been applied to...
Current problems in plasma spray processing (1992)
Berndt, Christopher C., Brindley, William J., Goland, Allen N., Herman, Herbert, Houck, David L., Jones, K. W., ...
This article summarizes eight contributions from a thermal spray conference that was held in late 1991 at Brookhaven National Laboratory, Upton, Long Island, New York. Plasma spray processing is...
Wear of coatings in wool-severing applications (1992)
Mair, R. H., Berndt, Christopher C.
Various surface treatments; including thermally sprayed ceramic coatings, titanium nitride (TiN) deposited by physical vapour deposition and nitrogen implantation processes, have been applied to...
Current problems in plasma spray processing (1992)
Berndt, Christopher C., Brindley, William J., Goland, Allen N., Herman, Herbert, Houck, David L., Jones, K. W., ...
This article summarizes eight contributions from a thermal spray conference that was held in late 1991 at Brookhaven National Laboratory, Upton, Long Island, New York. Plasma spray processing is...
Thermally sprayed coatings: properties and applications (1991)
Thermally sprayed coatings are produced from the repeated deposition of particles that are in the diameter range of 10 to 120 microns. The coating structure may be described as being of lamellar...
Opportunities and needs for standardization of ceramic coatings (1991)
Abstract not available.
Thermal and mechanical properties of thermal barrier coatings (1991)
Abstract not available.
Anisotropic thermal expansion behavior of thermally sprayed coatings (1991)
Wang, D., Berndt, Christopher C.
Abstract not available.
Thermally sprayed coatings: properties and applications (1991)
Thermally sprayed coatings are produced from the repeated deposition of particles that are in the diameter range of 10 to 120 microns. The coating structure may be described as being of lamellar...
Opportunities and needs for standardization of ceramic coatings (1991)
Abstract not available.
Thermal and mechanical properties of thermal barrier coatings (1991)
Abstract not available.
Anisotropic thermal expansion behavior of thermally sprayed coatings (1991)
Wang, D., Berndt, Christopher C.
Abstract not available.
Optimization of spraying parameters for hydroxyapatite (1991)
Gross, Karlis A., Berndt, Christopher C.
Abstract not available.
Particle/substrate interactions during thermal spraying (1991)
Wang, D., Berndt, Christopher C.
Thermal spraying has evolved into one of the more generic and valuable material processing techniques and a major means by which protective coatings are deposited. The plasma spray process leads to...
Mechanical, thermomechanical and tribological applications of ceramic coatings (1991)
Abstract not available.
Thermal spraying of hydroxyapatite for bioceramic applications (1991)
Gross, Karlis A., Berndt, Christopher C.
Ceramics that can be used for substitution within the body may be termed as bioceramics. Bioceramics are usually favoured over other materials because their composition mimics the body more closely...
Optimization of spraying parameters for hydroxyapatite (1991)
Gross, Karlis A., Berndt, Christopher C.
Abstract not available.
Particle/substrate interactions during thermal spraying (1991)
Wang, D., Berndt, Christopher C.
Thermal spraying has evolved into one of the more generic and valuable material processing techniques and a major means by which protective coatings are deposited. The plasma spray process leads to...
Mechanical, thermomechanical and tribological applications of ceramic coatings (1991)
Abstract not available.
Thermal spraying of hydroxyapatite for bioceramic applications (1991)
Gross, Karlis A., Berndt, Christopher C.
Ceramics that can be used for substitution within the body may be termed as bioceramics. Bioceramics are usually favoured over other materials because their composition mimics the body more closely...
Thermally sprayed coatings: properties and applications (1991)
Thermally sprayed coatings are produced from the repeated deposition of particles that are in the diameter range of 10 to 120 microns. The coating structure may be described as being of lamellar...
Opportunities and needs for standardization of ceramic coatings (1991)
Abstract not available.
Thermal and mechanical properties of thermal barrier coatings (1991)
Abstract not available.
Anisotropic thermal expansion behavior of thermally sprayed coatings (1991)
Wang, D., Berndt, Christopher C.
Abstract not available.
Optimization of spraying parameters for hydroxyapatite (1991)
Gross, Karlis A., Berndt, Christopher C.
Abstract not available.
Particle/substrate interactions during thermal spraying (1991)
Wang, D., Berndt, Christopher C.
Thermal spraying has evolved into one of the more generic and valuable material processing techniques and a major means by which protective coatings are deposited. The plasma spray process leads to...
Mechanical, thermomechanical and tribological applications of ceramic coatings (1991)
Abstract not available.
Thermal spraying of hydroxyapatite for bioceramic applications (1991)
Gross, Karlis A., Berndt, Christopher C.
Ceramics that can be used for substitution within the body may be termed as bioceramics. Bioceramics are usually favoured over other materials because their composition mimics the body more closely...
Review article: thermal spraying for bioceramic applications (1990)
Berndt, Christopher C., Haddad, G. N., Farmer, A. J. D., Gross, Karlis A.
Abstract not available.
Tensile adhesion testing methodology for thermally sprayed coatings (1990)
The structure of thermally sprayed coatings consists of lamellae which are oriented parallel to the substrate surface. Coatings most often consist of a metallic bond coat and a ceramic overlay,...
Review article: thermal spraying for bioceramic applications (1990)
Berndt, Christopher C., Haddad, G. N., Farmer, A. J. D., Gross, Karlis A.
Abstract not available.
Tensile adhesion testing methodology for thermally sprayed coatings (1990)
The structure of thermally sprayed coatings consists of lamellae which are oriented parallel to the substrate surface. Coatings most often consist of a metallic bond coat and a ceramic overlay,...
Mode II fracture toughness test for thermally sprayed coatings (1990)
Callus, P. J., Berndt, Christopher C.
Abstract not available.
Mode II fracture toughness test for thermally sprayed coatings (1990)
Callus, P. J., Berndt, Christopher C.
Abstract not available.
Review article: thermal spraying for bioceramic applications (1990)
Berndt, Christopher C., Haddad, G. N., Farmer, A. J. D., Gross, Karlis A.
Abstract not available.
Tensile adhesion testing methodology for thermally sprayed coatings (1990)
The structure of thermally sprayed coatings consists of lamellae which are oriented parallel to the substrate surface. Coatings most often consist of a metallic bond coat and a ceramic overlay,...
Mode II fracture toughness test for thermally sprayed coatings (1990)
Callus, P. J., Berndt, Christopher C.
Abstract not available.
Instrumented tensile adhesion tests on plasma sprayed thermal barrier coatings (1989)
Tensile adhesion tests (TATs) which are normally utilized for industrial quality control procedures have been used for research purposes to examine failure mechanisms of plasma sprayed coatings. This...
Failure processes within ceramic coatings at high temperatures (1989)
Plasma sprayed coatings have a complex structure which is produced by the overlaying of many molten or semi-molten particles in the diameter range of 20 to 120 µm. There is a need to...
Instrumented tensile adhesion tests on plasma sprayed thermal barrier coatings (1989)
Tensile adhesion tests (TATs) which are normally utilized for industrial quality control procedures have been used for research purposes to examine failure mechanisms of plasma sprayed coatings. This...
Failure processes within ceramic coatings at high temperatures (1989)
Plasma sprayed coatings have a complex structure which is produced by the overlaying of many molten or semi-molten particles in the diameter range of 20 to 120 µm. There is a need to...
Manufacture and microstructure of fiber-reinforced thermally sprayed coatings (1989)
Berndt, Christopher C., Yi, J. H.
The major limitation for the continued development of coatings, as well as expanding their range of application, lies in their poor fracture toughness. The coating properties may be enhanced if a...
Manufacture and microstructure of fiber-reinforced thermally sprayed coatings (1989)
Berndt, Christopher C., Yi, J. H.
The major limitation for the continued development of coatings, as well as expanding their range of application, lies in their poor fracture toughness. The coating properties may be enhanced if a...
Instrumented tensile adhesion tests on plasma sprayed thermal barrier coatings (1989)
Tensile adhesion tests (TATs) which are normally utilized for industrial quality control procedures have been used for research purposes to examine failure mechanisms of plasma sprayed coatings. This...
Failure processes within ceramic coatings at high temperatures (1989)
Plasma sprayed coatings have a complex structure which is produced by the overlaying of many molten or semi-molten particles in the diameter range of 20 to 120 µm. There is a need to...
Manufacture and microstructure of fiber-reinforced thermally sprayed coatings (1989)
Berndt, Christopher C., Yi, J. H.
The major limitation for the continued development of coatings, as well as expanding their range of application, lies in their poor fracture toughness. The coating properties may be enhanced if a...
Material property measurements on thermal barrier coatings (1988)
Abstract not available.
Material property measurements on thermal barrier coatings (1988)
Abstract not available.
Material property measurements on thermal barrier coatings (1988)
Abstract not available.
The variability in strength of thermally sprayed coatings (1987)
Ostojic, P., Berndt, Christopher C.
There is a large variability in the bond strengths of coatings which are determined by the tensile adhesion test method. The primary intention of this work is to establish a suitable parameter which...
The variability in strength of thermally sprayed coatings (1987)
Ostojic, P., Berndt, Christopher C.
There is a large variability in the bond strengths of coatings which are determined by the tensile adhesion test method. The primary intention of this work is to establish a suitable parameter which...
The variability in strength of thermally sprayed coatings (1987)
Ostojic, P., Berndt, Christopher C.
There is a large variability in the bond strengths of coatings which are determined by the tensile adhesion test method. The primary intention of this work is to establish a suitable parameter which...
Discrimination of micro and macrocracking processes in plasma sprayed ceramic coatings (1986)
Abstract not available.
Discrimination of micro and macrocracking processes in plasma sprayed ceramic coatings (1986)
Abstract not available.
Discrimination of micro and macrocracking processes in plasma sprayed ceramic coatings (1986)
Abstract not available.
Acoustic emission evaluation of plasma-sprayed thermal barrier coatings (1985)
Acoustic emission techniques have recently been used in a number of studies to investigate the performance and failure behavior of plasma-sprayed thermal barrier coatings. Failure of the coating is a...
Acoustic emission evaluation of plasma-sprayed thermal barrier coatings (1985)
Acoustic emission techniques have recently been used in a number of studies to investigate the performance and failure behavior of plasma-sprayed thermal barrier coatings. Failure of the coating is a...
Acoustic emission evaluation of plasma-sprayed thermal barrier coatings (1985)
Acoustic emission techniques have recently been used in a number of studies to investigate the performance and failure behavior of plasma-sprayed thermal barrier coatings. Failure of the coating is a...
Acoustic emission evaluation of plasma-sprayed thermal barrier coatings (1984)
Abstract not available.
Fracture toughness tests on plasma-sprayed coatings (1984)
Fracture toughness measurements have been performed on plasma-sprayed coatings. The intrinsic fracture toughness of plasma-sprayed coatings may be ascertained by means of a double cantilever beam...
Tensile adhesion test measurements on plasma-sprayed coatings (1984)
This paper examines the tensile method for finding the adhesion property of plasma-sprayed coatings. The inadequacies of this method are clarified and a fracture mechanics approach is proposed. In...
Acoustic emission evaluation of plasma-sprayed thermal barrier coatings (1984)
Abstract not available.
Fracture toughness tests on plasma-sprayed coatings (1984)
Fracture toughness measurements have been performed on plasma-sprayed coatings. The intrinsic fracture toughness of plasma-sprayed coatings may be ascertained by means of a double cantilever beam...
Tensile adhesion test measurements on plasma-sprayed coatings (1984)
This paper examines the tensile method for finding the adhesion property of plasma-sprayed coatings. The inadequacies of this method are clarified and a fracture mechanics approach is proposed. In...
Studies on plasma-sprayed thermal barrier coatings (1984)
The emphasis of this work has been the fundamental characterization of the material properties of thermal barrier coatings. Tests have been carried out on plasma sprayed ZrO//2-8wt%Y//2O//3 and...
Mechanical behavior of thermal barrier coatings for gas turbine blades (1984)
Berndt, Christopher C., Phucharoen, Woraphat, Chang, George C.
Plasma-sprayed thermal barrier coatings (TBCs) will enable turbine components to operate at higher temperatures and lower cooling gas flow rates; thereby improving their efficiency. Future...
Performance of thermal barrier coatings in high heat flux environments (1984)
Miller, Robert A., Berndt, Christopher C.
Thermal barrier coatings were exposed to the high temperature and high heat flux produced by a 30 kw plasma torch. Analysis of the specimen heating rates indicates that the temperature drop across...
Failure analysis of plasma-sprayed thermal barrier coatings (1984)
Berndt, Christopher C., Miller, Robert A.
This work examines thermally induced failure processes of plasma-sprayed thermal barrier coatings. Cracking processes give rise to noise which was monitored by acoustic emission (AE) techniques. The...
Failure analysis of plasma-sprayed thermal barrier coatings (1984)
Berndt, Christopher C., Miller, Robert A.
In this work thermally induced failure processes of plasma-sprayed thermal barrier coatings were examined. Cracking processes give rise to noise which was monitored by acoustic emission techniques....
Performance of thermal barrier coatings in high heat flux environments (1984)
Miller, Robert A., Berndt, Christopher C.
Thermal barrier coatings were exposed to the high temperature and high heat flux produced by a 30 kw plasma torch. Analysis of the specimen heating rates indicates that the temperature drop across...
Behavior of plasma-sprayed coatings (1984)
This chapter describes the microstructural development of plasma-sprayed oxide coatings and relates microstructural details to their mechanical behavior. Specific examples are drawn from experience...
Neutron and X-ray diffraction of plasma-sprayed zirconia-yttria thermal barrier coatings (1984)
Shankar, N. Ravi, Herman, Herbert, Singhal, S. P., Berndt, Christopher C.
ZrO//2-7. 8mol. %YO//1//. //5, a fused powder, and ZrO//2-8. 7mol%YO//1//. //5, a prereacted powder, were plasma sprayed onto steel substrates. Neutron diffraction and X-ray diffraction of the...
Studies on plasma-sprayed thermal barrier coatings (1984)
The emphasis of this work has been the fundamental characterization of the material properties of thermal barrier coatings. Tests have been carried out on plasma sprayed ZrO//2-8wt%Y//2O//3 and...
Mechanical behavior of thermal barrier coatings for gas turbine blades (1984)
Berndt, Christopher C., Phucharoen, Woraphat, Chang, George C.
Plasma-sprayed thermal barrier coatings (TBCs) will enable turbine components to operate at higher temperatures and lower cooling gas flow rates; thereby improving their efficiency. Future...
Performance of thermal barrier coatings in high heat flux environments (1984)
Miller, Robert A., Berndt, Christopher C.
Thermal barrier coatings were exposed to the high temperature and high heat flux produced by a 30 kw plasma torch. Analysis of the specimen heating rates indicates that the temperature drop across...
Failure analysis of plasma-sprayed thermal barrier coatings (1984)
Berndt, Christopher C., Miller, Robert A.
This work examines thermally induced failure processes of plasma-sprayed thermal barrier coatings. Cracking processes give rise to noise which was monitored by acoustic emission (AE) techniques. The...
Failure analysis of plasma-sprayed thermal barrier coatings (1984)
Berndt, Christopher C., Miller, Robert A.
In this work thermally induced failure processes of plasma-sprayed thermal barrier coatings were examined. Cracking processes give rise to noise which was monitored by acoustic emission techniques....
Performance of thermal barrier coatings in high heat flux environments (1984)
Miller, Robert A., Berndt, Christopher C.
Thermal barrier coatings were exposed to the high temperature and high heat flux produced by a 30 kw plasma torch. Analysis of the specimen heating rates indicates that the temperature drop across...
Behavior of plasma-sprayed coatings (1984)
This chapter describes the microstructural development of plasma-sprayed oxide coatings and relates microstructural details to their mechanical behavior. Specific examples are drawn from experience...
Neutron and X-ray diffraction of plasma-sprayed zirconia-yttria thermal barrier coatings (1984)
Shankar, N. Ravi, Herman, Herbert, Singhal, S. P., Berndt, Christopher C.
ZrO//2-7. 8mol. %YO//1//. //5, a fused powder, and ZrO//2-8. 7mol%YO//1//. //5, a prereacted powder, were plasma sprayed onto steel substrates. Neutron diffraction and X-ray diffraction of the...
Acoustic emission evaluation of plasma-sprayed thermal barrier coatings (1984)
Abstract not available.
Fracture toughness tests on plasma-sprayed coatings (1984)
Fracture toughness measurements have been performed on plasma-sprayed coatings. The intrinsic fracture toughness of plasma-sprayed coatings may be ascertained by means of a double cantilever beam...
Tensile adhesion test measurements on plasma-sprayed coatings (1984)
This paper examines the tensile method for finding the adhesion property of plasma-sprayed coatings. The inadequacies of this method are clarified and a fracture mechanics approach is proposed. In...
Studies on plasma-sprayed thermal barrier coatings (1984)
The emphasis of this work has been the fundamental characterization of the material properties of thermal barrier coatings. Tests have been carried out on plasma sprayed ZrO//2-8wt%Y//2O//3 and...
Mechanical behavior of thermal barrier coatings for gas turbine blades (1984)
Berndt, Christopher C., Phucharoen, Woraphat, Chang, George C.
Plasma-sprayed thermal barrier coatings (TBCs) will enable turbine components to operate at higher temperatures and lower cooling gas flow rates; thereby improving their efficiency. Future...
Performance of thermal barrier coatings in high heat flux environments (1984)
Miller, Robert A., Berndt, Christopher C.
Thermal barrier coatings were exposed to the high temperature and high heat flux produced by a 30 kw plasma torch. Analysis of the specimen heating rates indicates that the temperature drop across...
Failure analysis of plasma-sprayed thermal barrier coatings (1984)
Berndt, Christopher C., Miller, Robert A.
This work examines thermally induced failure processes of plasma-sprayed thermal barrier coatings. Cracking processes give rise to noise which was monitored by acoustic emission (AE) techniques. The...
Failure analysis of plasma-sprayed thermal barrier coatings (1984)
Berndt, Christopher C., Miller, Robert A.
In this work thermally induced failure processes of plasma-sprayed thermal barrier coatings were examined. Cracking processes give rise to noise which was monitored by acoustic emission techniques....
Performance of thermal barrier coatings in high heat flux environments (1984)
Miller, Robert A., Berndt, Christopher C.
Thermal barrier coatings were exposed to the high temperature and high heat flux produced by a 30 kw plasma torch. Analysis of the specimen heating rates indicates that the temperature drop across...
Behavior of plasma-sprayed coatings (1984)
This chapter describes the microstructural development of plasma-sprayed oxide coatings and relates microstructural details to their mechanical behavior. Specific examples are drawn from experience...
Neutron and X-ray diffraction of plasma-sprayed zirconia-yttria thermal barrier coatings (1984)
Shankar, N. Ravi, Herman, Herbert, Singhal, S. P., Berndt, Christopher C.
ZrO//2-7. 8mol. %YO//1//. //5, a fused powder, and ZrO//2-8. 7mol%YO//1//. //5, a prereacted powder, were plasma sprayed onto steel substrates. Neutron diffraction and X-ray diffraction of the...
Properties and phase studies of plasma-sprayed y-stabilized zirconia thermal barrier coatings (1983)
Berndt, Christopher C., Herman, Herbert
Plasma-sprayed thermal barrier coatings (TBC) based on yttria partially stabilized zirconia are studied with the goal of application to gas turbine blades. This work focuses on the anisotropic...
Characterization of imperfections in plasma-sprayed titania (1983)
Berndt, Christopher C., Korlipara, Ravi, Zatorski, Raymond A., Herman, Herbert, Jonca, A., Templeton, T., ...
Abstract not available.
Properties and phase studies of plasma-sprayed y-stabilized zirconia thermal barrier coatings (1983)
Berndt, Christopher C., Herman, Herbert
Plasma-sprayed thermal barrier coatings (TBC) based on yttria partially stabilized zirconia are studied with the goal of application to gas turbine blades. This work focuses on the anisotropic...
Characterization of imperfections in plasma-sprayed titania (1983)
Berndt, Christopher C., Korlipara, Ravi, Zatorski, Raymond A., Herman, Herbert, Jonca, A., Templeton, T., ...
Abstract not available.
Acoustic emission from thermally cycled plasma-sprayed oxides (1983)
Shankar, N. Ravi, Berndt, Christopher C., Herman, Herbert, Rangaswamy, Subramaniam
Acoustic emission methodology was used to study a variety of plasma-sprayed oxide coatings subjected to thermal cycling in the range 25 degree to 650 degree C. Coatings of Al//2O//3, TiO//2,...
Failure during thermal cycling of plasma-sprayed thermal barrier coatings (1983)
Berndt, Christopher C., Herman, Herbert
The thermal cycling behavior of plasma-sprayed ZrO//2-12wt. %Y//2O//3 coatings was studied. Coatings were produced with and without bond coats of Ni-Cr-Al-Zr and in some cases the substrates were...
Fire barrier coatings for protection of aluminium structures (1983)
Berndt, Christopher C., Robins, D., Zatorski, Raymond A., Herman, Herbert
The main problems addressed in this work are the ability of a cermet coating to perform as a fire barrier. Also of importance are the corrosion characteristics and mechanical properties of the cermet...
Structural integrity of thermal barrier coatings by acoustic emission studies (1983)
Shankar, N. Ravi, Berndt, Christopher C., Herman, Herbert
This work describes acoustic emission (AE) experiments which have been carried out to study the deformation modes of plasma-sprayed ZrO//2-20 wt % MgO coatings subjected to tensile adhesion tests....
Characterization of the mechanical properties of plasma-sprayed coatings (1983)
Shankar, N. Ravi, Berndt, Christopher C., Herman, Herbert
Abstract not available.
Acoustic emission from thermally cycled plasma-sprayed oxides (1983)
Shankar, N. Ravi, Berndt, Christopher C., Herman, Herbert, Rangaswamy, Subramaniam
Acoustic emission methodology was used to study a variety of plasma-sprayed oxide coatings subjected to thermal cycling in the range 25 degree to 650 degree C. Coatings of Al//2O//3, TiO//2,...
Failure during thermal cycling of plasma-sprayed thermal barrier coatings (1983)
Berndt, Christopher C., Herman, Herbert
The thermal cycling behavior of plasma-sprayed ZrO//2-12wt. %Y//2O//3 coatings was studied. Coatings were produced with and without bond coats of Ni-Cr-Al-Zr and in some cases the substrates were...
Fire barrier coatings for protection of aluminium structures (1983)
Berndt, Christopher C., Robins, D., Zatorski, Raymond A., Herman, Herbert
The main problems addressed in this work are the ability of a cermet coating to perform as a fire barrier. Also of importance are the corrosion characteristics and mechanical properties of the cermet...
Structural integrity of thermal barrier coatings by acoustic emission studies (1983)
Shankar, N. Ravi, Berndt, Christopher C., Herman, Herbert
This work describes acoustic emission (AE) experiments which have been carried out to study the deformation modes of plasma-sprayed ZrO//2-20 wt % MgO coatings subjected to tensile adhesion tests....
Characterization of the mechanical properties of plasma-sprayed coatings (1983)
Shankar, N. Ravi, Berndt, Christopher C., Herman, Herbert
Abstract not available.
Properties and phase studies of plasma-sprayed y-stabilized zirconia thermal barrier coatings (1983)
Berndt, Christopher C., Herman, Herbert
Plasma-sprayed thermal barrier coatings (TBC) based on yttria partially stabilized zirconia are studied with the goal of application to gas turbine blades. This work focuses on the anisotropic...
Characterization of imperfections in plasma-sprayed titania (1983)
Berndt, Christopher C., Korlipara, Ravi, Zatorski, Raymond A., Herman, Herbert, Jonca, A., Templeton, T., ...
Abstract not available.
Acoustic emission from thermally cycled plasma-sprayed oxides (1983)
Shankar, N. Ravi, Berndt, Christopher C., Herman, Herbert, Rangaswamy, Subramaniam
Acoustic emission methodology was used to study a variety of plasma-sprayed oxide coatings subjected to thermal cycling in the range 25 degree to 650 degree C. Coatings of Al//2O//3, TiO//2,...
Failure during thermal cycling of plasma-sprayed thermal barrier coatings (1983)
Berndt, Christopher C., Herman, Herbert
The thermal cycling behavior of plasma-sprayed ZrO//2-12wt. %Y//2O//3 coatings was studied. Coatings were produced with and without bond coats of Ni-Cr-Al-Zr and in some cases the substrates were...
Fire barrier coatings for protection of aluminium structures (1983)
Berndt, Christopher C., Robins, D., Zatorski, Raymond A., Herman, Herbert
The main problems addressed in this work are the ability of a cermet coating to perform as a fire barrier. Also of importance are the corrosion characteristics and mechanical properties of the cermet...
Structural integrity of thermal barrier coatings by acoustic emission studies (1983)
Shankar, N. Ravi, Berndt, Christopher C., Herman, Herbert
This work describes acoustic emission (AE) experiments which have been carried out to study the deformation modes of plasma-sprayed ZrO//2-20 wt % MgO coatings subjected to tensile adhesion tests....
Characterization of the mechanical properties of plasma-sprayed coatings (1983)
Shankar, N. Ravi, Berndt, Christopher C., Herman, Herbert
Abstract not available.
Anisotropic thermal-expansion effects in plasma sprayed ZRO2-8 WT-% Y2O3 coatings (1982)
Berndt, Christopher C., Herman, Herbert
Abstract not available.
Adhesion of thermally sprayed coatings: AWRA contract 81 (1982)
Berndt, Christopher C., McPherson, Reginald R.
A fracture mechanics approach to the adhesion of plasma sprayed coatings provides insights into the mechanism of adhesion. Thus the strain energy release rate for adhesive or cohesive failure may be...
Failure and acoustic-emission response of plasma-sprayed ZrO2-8 wt% Y2O3 coatings (1982)
Shankar, N. Ravi, Berndt, Christopher C., Herman, Herbert
It is critical to understand fundamental failure processes in order to design coatings for engineering purposes. The failure of ZrO2-8 wt% Y2O3 plasma-sprayed coatings is examined in the present...
Anisotropic thermal-expansion effects in plasma sprayed ZRO2-8 WT-% Y2O3 coatings (1982)
Berndt, Christopher C., Herman, Herbert
Abstract not available.
Adhesion of thermally sprayed coatings: AWRA contract 81 (1982)
Berndt, Christopher C., McPherson, Reginald R.
A fracture mechanics approach to the adhesion of plasma sprayed coatings provides insights into the mechanism of adhesion. Thus the strain energy release rate for adhesive or cohesive failure may be...
Failure and acoustic-emission response of plasma-sprayed ZrO2-8 wt% Y2O3 coatings (1982)
Shankar, N. Ravi, Berndt, Christopher C., Herman, Herbert
It is critical to understand fundamental failure processes in order to design coatings for engineering purposes. The failure of ZrO2-8 wt% Y2O3 plasma-sprayed coatings is examined in the present...
Anisotropic thermal-expansion effects in plasma sprayed ZRO2-8 WT-% Y2O3 coatings (1982)
Berndt, Christopher C., Herman, Herbert
Abstract not available.
Adhesion of thermally sprayed coatings: AWRA contract 81 (1982)
Berndt, Christopher C., McPherson, Reginald R.
A fracture mechanics approach to the adhesion of plasma sprayed coatings provides insights into the mechanism of adhesion. Thus the strain energy release rate for adhesive or cohesive failure may be...
Failure and acoustic-emission response of plasma-sprayed ZrO2-8 wt% Y2O3 coatings (1982)
Shankar, N. Ravi, Berndt, Christopher C., Herman, Herbert
It is critical to understand fundamental failure processes in order to design coatings for engineering purposes. The failure of ZrO2-8 wt% Y2O3 plasma-sprayed coatings is examined in the present...
Adhesion of plasma sprayed ceramic coatings to metal (1981)
Berndt, Christopher C., McPherson, Reginald R.
Abstract not available.
Fracture mechanics approach to the adhesion of flame and plasma sprayed coatings (1981)
Berndt, Christopher C., McPherson, Reginald R.
A fracture mechanics approach is applied to measuring the adhesion of plasma and flame sprayed coatings of mild steel, nickel-aluminum composite and alumina applied to a mild steel substrate. The...
Adhesion of plasma sprayed ceramic coatings to metal (1981)
Berndt, Christopher C., McPherson, Reginald R.
Abstract not available.
Fracture mechanics approach to the adhesion of flame and plasma sprayed coatings (1981)
Berndt, Christopher C., McPherson, Reginald R.
A fracture mechanics approach is applied to measuring the adhesion of plasma and flame sprayed coatings of mild steel, nickel-aluminum composite and alumina applied to a mild steel substrate. The...
Adhesion of plasma sprayed ceramic coatings to metal (1981)
Berndt, Christopher C., McPherson, Reginald R.
Abstract not available.
Fracture mechanics approach to the adhesion of flame and plasma sprayed coatings (1981)
Berndt, Christopher C., McPherson, Reginald R.
A fracture mechanics approach is applied to measuring the adhesion of plasma and flame sprayed coatings of mild steel, nickel-aluminum composite and alumina applied to a mild steel substrate. The...
The adhesion of flame and plasma sprayed coatings (1980)
Submitted for the degree of Doctor of Philosophy in the Dept. of Materials Engineering. Summary: [unpaged] at front of text. Typescript. Bibliography: leaves 249-259.
The adhesion of flame and plasma sprayed coatings (1980)
Submitted for the degree of Doctor of Philosophy in the Dept. of Materials Engineering. Summary: [unpaged] at front of text. Microreproduction of original issued: [Clayton, Vic.], 1980. iv, 259...
Fracture mechanics approach to the adhesion of flame and plasma sprayed coatings (1980)
Berndt, Christopher C., McPherson, Reginald R.
A fracture mechanics approach is applied to measuring the adhesion of plasma and flame sprayed coatings of mild steel, nickel-aluminum composite and alumina applied to a mild steel substrate. The...
Berndt, Christopher C., McPherson, Reginald R.
Greater adhesion of ceramic coatings applied over Ni-Al on steel compared with the ceramic coated directly onto steel are attributed to deformation of the bond coating in the region of the interface.
Fracture mechanics and fractography of plasma sprayed coatings (1980)
Berndt, Christopher C., McPherson, Reginald R.
Measurements were carried out in order to establish a relationship between crack length and compliance for specimens with both arms manufactured from mild steel; find how compliance varies for...
Fracture mechanics approach to the adhesion of flame and plasma sprayed coatings (1980)
Berndt, Christopher C., McPherson, Reginald R.
Abstract not available.
Fracture mechanics approach to the adhesion of flame and plasma sprayed coatings (1980)
Berndt, Christopher C., McPherson, Reginald R.
A fracture mechanics approach is applied to measuring the adhesion of plasma and flame sprayed coatings of mild steel, nickel-aluminum composite and alumina applied to a mild steel substrate. The...
Berndt, Christopher C., McPherson, Reginald R.
Greater adhesion of ceramic coatings applied over Ni-Al on steel compared with the ceramic coated directly onto steel are attributed to deformation of the bond coating in the region of the interface.
Fracture mechanics and fractography of plasma sprayed coatings (1980)
Berndt, Christopher C., McPherson, Reginald R.
Measurements were carried out in order to establish a relationship between crack length and compliance for specimens with both arms manufactured from mild steel; find how compliance varies for...
Fracture mechanics approach to the adhesion of flame and plasma sprayed coatings (1980)
Berndt, Christopher C., McPherson, Reginald R.
Abstract not available.
Fracture mechanics approach to the adhesion of flame and plasma sprayed coatings (1980)
Berndt, Christopher C., McPherson, Reginald R.
A fracture mechanics approach is applied to measuring the adhesion of plasma and flame sprayed coatings of mild steel, nickel-aluminum composite and alumina applied to a mild steel substrate. The...
Berndt, Christopher C., McPherson, Reginald R.
Greater adhesion of ceramic coatings applied over Ni-Al on steel compared with the ceramic coated directly onto steel are attributed to deformation of the bond coating in the region of the interface.
Fracture mechanics and fractography of plasma sprayed coatings (1980)
Berndt, Christopher C., McPherson, Reginald R.
Measurements were carried out in order to establish a relationship between crack length and compliance for specimens with both arms manufactured from mild steel; find how compliance varies for...
Fracture mechanics approach to the adhesion of flame and plasma sprayed coatings (1980)
Berndt, Christopher C., McPherson, Reginald R.
Abstract not available.
Adhesion of flame and plasma sprayed coatings: a literature review (1979)
Berndt, Christopher C., McPherson, Reginald R.
The coating of a metal with either another metal or a ceramic may provide certain improvements in surface properties. Plasma spraying is an extension of flame spraying which takes advantage of a...
Adhesion of flame and plasma sprayed coatings: a literature review (1979)
Berndt, Christopher C., McPherson, Reginald R.
The coating of a metal with either another metal or a ceramic may provide certain improvements in surface properties. Plasma spraying is an extension of flame spraying which takes advantage of a...
Adhesion of flame and plasma sprayed coatings: a literature review (1979)
Berndt, Christopher C., McPherson, Reginald R.
The coating of a metal with either another metal or a ceramic may provide certain improvements in surface properties. Plasma spraying is an extension of flame spraying which takes advantage of a...