Ran, Dr. S., Winnubst, Dr. A.J.A., Blank, Prof.Dr.Ing. D.H.A., Pasaribu, Dr. H.R., Sloetjes, Ir. J.W., Schipper, Prof.dr.ir. D.J.
Dense 8 mol% CuO-doped 3Y-TZP ceramics were prepared by pressureless sintering for 8 h at 1500° and 1550°C, respectively. Transmission electron spectroscopy revealed that the ceramic sintered at...
Ran, Dr. S., Winnubst, Dr. A.J.A., Blank, Prof.Dr.Ing. D.H.A., Pasaribu, Dr. H.R., Sloetjes, Ir. J.W., Schipper, Prof.dr.ir. D.J.
Dense 8 mol% CuO-doped 3Y-TZP ceramics were prepared by pressureless sintering for 8 h at 1500° and 1550°C, respectively. Transmission electron spectroscopy revealed that the ceramic sintered at...
Contact model for hydrostatic extrusion of magnesium (2007)
Moodij, Ing. E., Rooij De, Dr.ir. M.B., Schipper, Prof.dr.ir. D.J.
Contact model for hydrostatic extrusion of magnesium (2007)
Moodij, Ing. E., Rooij De, Dr.ir. M.B., Schipper, Prof.dr.ir. D.J.
Pasaribu, Dr. H.R., Reuver, K.M., Schipper, Prof.dr.ir. D.J., Ran, Dr. S., Wiratha, Ing. K.W., Winnubst, Dr. A.J.A.
The influence of the addition of copper oxide on the friction and wear characteristics of dry sliding zirconia and alumina at various humidities and elevated temperatures is outlined in this article....
Pasaribu, Dr. H.R., Reuver, K.M., Schipper, Prof.dr.ir. D.J., Ran, Dr. S., Wiratha, Ing. K.W., Winnubst, Dr. A.J.A.
The influence of the addition of copper oxide on the friction and wear characteristics of dry sliding zirconia and alumina at various humidities and elevated temperatures is outlined in this article....
Wear-resistant CuO-doped zirconia ceramic with low friction (2004)
Pasaribu, Dr. H.R., Sloetjes, Ir. J.W., Schipper, Prof.dr.ir. D.J., Ran, Dr. S., Wiratha, Ing. K.W., Winnubst, Dr. A.J.A., ...
A wear-resistant zirconia ceramic for low friction application (2004)
Winnubst, Dr. A.J.A., Ran, Dr. S., Wiratha, Ing. K.W., Blank, Prof.Dr.Ing. D.H.A., Pasaribu, Dr. H.R., Sloetjes, Ir. J.W., ...
Kerkwijk, Dr.ir. B., Garcia-Curiel De La Luz, M.M., Zyl Van, Dr. W.E., Winnubst, Dr. A.J.A., Mulder, Ir. E.J., Schipper, Prof.dr.ir. D.J., ...
The influence of metal oxide additives within alumina (¿-Al2O3) and yttria-stabilised tetragonal zirconia (Y-TZP) matrices was studied with respect to the tribological behaviour of the composites....
The transition of mild to severe wear of ceramics (2004)
Pasaribu, Dr. H.R., Sloetjes, Ir. J.W., Schipper, Prof.dr.ir. D.J.
The transition of mild to severe wear of ceramics depends on the operating conditions (normal load, velocity and temperature) and material properties (like grain size, mechanical and thermal material...
Wear-resistant CuO-doped zirconia ceramic with low friction (2004)
Pasaribu, Dr. H.R., Sloetjes, Ir. J.W., Schipper, Prof.dr.ir. D.J., Ran, Dr. S., Wiratha, Ing. K.W., Winnubst, Dr. A.J.A., ...
A wear-resistant zirconia ceramic for low friction application (2004)
Winnubst, Dr. A.J.A., Ran, Dr. S., Wiratha, Ing. K.W., Blank, Prof.Dr.Ing. D.H.A., Pasaribu, Dr. H.R., Sloetjes, Ir. J.W., ...
Kerkwijk, Dr.ir. B., Garcia-Curiel De La Luz, M.M., Zyl Van, Dr. W.E., Winnubst, Dr. A.J.A., Mulder, Ir. E.J., Schipper, Prof.dr.ir. D.J., ...
The influence of metal oxide additives within alumina (¿-Al2O3) and yttria-stabilised tetragonal zirconia (Y-TZP) matrices was studied with respect to the tribological behaviour of the composites....
The transition of mild to severe wear of ceramics (2004)
Pasaribu, Dr. H.R., Sloetjes, Ir. J.W., Schipper, Prof.dr.ir. D.J.
The transition of mild to severe wear of ceramics depends on the operating conditions (normal load, velocity and temperature) and material properties (like grain size, mechanical and thermal material...
Wear of soft tool materials in sliding contact with zinc coated steel sheet (2003)
Heide Van Der, Dr.ir. E., Burlat, M., Bolt, P.J., Schipper, Prof.dr.ir. D.J.
In order to reduce costs of tooling for press operations, efforts are made to use alternative tool materials like wood or plastic. Friction and wear characteristics in sliding contact with...
Friction reduction by adding copper oxide into alumina and zirconia ceramics (2003)
Pasaribu, Dr. H.R., Sloetjes, Ir. J.W., Schipper, Prof.dr.ir. D.J.
The friction and wear of alumina and zirconia ceramics doped with various weight percentages (0.5, 1 and 5 wt.%) of CuO was studied. Dry sliding tests by using a pin-on-disc tribotester were...
Galling initiation due to frictional heating (2003)
Heide Van Der, Dr.ir. E., Schipper, Prof.dr.ir. D.J.
The lifetime of sheet metal forming (SMF) tools is often limited by galling, a wear type that affects the surface quality of the products and the lifetime of SMF tools. Since SMF tools represent high...
Wear of soft tool materials in sliding contact with zinc coated steel sheet (2003)
Heide Van Der, Dr.ir. E., Burlat, M., Bolt, P.J., Schipper, Prof.dr.ir. D.J.
In order to reduce costs of tooling for press operations, efforts are made to use alternative tool materials like wood or plastic. Friction and wear characteristics in sliding contact with...
Friction reduction by adding copper oxide into alumina and zirconia ceramics (2003)
Pasaribu, Dr. H.R., Sloetjes, Ir. J.W., Schipper, Prof.dr.ir. D.J.
The friction and wear of alumina and zirconia ceramics doped with various weight percentages (0.5, 1 and 5 wt.%) of CuO was studied. Dry sliding tests by using a pin-on-disc tribotester were...
Galling initiation due to frictional heating (2003)
Heide Van Der, Dr.ir. E., Schipper, Prof.dr.ir. D.J.
The lifetime of sheet metal forming (SMF) tools is often limited by galling, a wear type that affects the surface quality of the products and the lifetime of SMF tools. Since SMF tools represent high...
The effect of lubricant selection on galling in a model wear test (2001)
Heide Van Der, Dr.ir. E., Huis In 't Veld, A.J., Schipper, Prof.dr.ir. D.J.
Galling is a known failure mechanism in sheet metal forming (SMF) processes. As a result of this wear process, the amount of waste increases, the production process becomes hard to control and...
Wear of ceramics due to thermal stress: a thermal severity parameter (2001)
Metselaar, Ir. H.S.C., Kerkwijk, Dr.ir. B., Mulder, Ir. E.J., Verweij, Prof.dr.ir. H., Schipper, Prof.dr.ir. D.J.
Wear of ceramics under dry sliding conditions is, besides mechanical overload, often governed by frictional heating. On the basis of this study a new thermal severity parameter is introduced and...
The effect of lubricant selection on galling in a model wear test (2001)
Heide Van Der, Dr.ir. E., Huis In 't Veld, A.J., Schipper, Prof.dr.ir. D.J.
Galling is a known failure mechanism in sheet metal forming (SMF) processes. As a result of this wear process, the amount of waste increases, the production process becomes hard to control and...
Wear of ceramics due to thermal stress: a thermal severity parameter (2001)
Metselaar, Ir. H.S.C., Kerkwijk, Dr.ir. B., Mulder, Ir. E.J., Verweij, Prof.dr.ir. H., Schipper, Prof.dr.ir. D.J.
Wear of ceramics under dry sliding conditions is, besides mechanical overload, often governed by frictional heating. On the basis of this study a new thermal severity parameter is introduced and...
Calculation of stribeck curves for line contacts (2000)
Gelinck, Ir. E.R.M., Schipper, Prof.dr.ir. D.J.
A mixed lubrication model is presented by which Stribeck curves can be calculated. By means of the Stribeck curve the transitions from boundary lubrication to mixed lubrication and the transitions...
Calculation of stribeck curves for line contacts (2000)
Gelinck, Ir. E.R.M., Schipper, Prof.dr.ir. D.J.
A mixed lubrication model is presented by which Stribeck curves can be calculated. By means of the Stribeck curve the transitions from boundary lubrication to mixed lubrication and the transitions...
Thermally induced wear of ceramics (1999)
Metselaar, Ir. H.S.C., Winnubst, Dr. A.J.A., Schipper, Prof.dr.ir. D.J.
Wear of ceramics under dry sliding conditions is often governed by frictional heating. In this paper, a method is presented to predict the boundary between the mild wear regime and the severe wear...
Tribological properties of nanoscale alumina-zirconia composites (1999)
Kerkwijk, Dr.ir. B., Winnubst, Dr. A.J.A., Verweij, Prof.dr.ir. H., Mulder, Ir. E.J., Metselaar, Ir. H.S.C., Schipper, Prof.dr.ir. D.J.
The tribological properties of zirconia (Y-TZP), alumina and their composites, alumina dispersed in zirconia (ADZ) and zirconia-toughened alumina (ZTA), were investigated. These ceramics are made by...
Thermally induced wear of ceramics (1999)
Metselaar, Ir. H.S.C., Winnubst, Dr. A.J.A., Schipper, Prof.dr.ir. D.J.
Wear of ceramics under dry sliding conditions is often governed by frictional heating. In this paper, a method is presented to predict the boundary between the mild wear regime and the severe wear...
Tribological properties of nanoscale alumina-zirconia composites (1999)
Kerkwijk, Dr.ir. B., Winnubst, Dr. A.J.A., Verweij, Prof.dr.ir. H., Mulder, Ir. E.J., Metselaar, Ir. H.S.C., Schipper, Prof.dr.ir. D.J.
The tribological properties of zirconia (Y-TZP), alumina and their composites, alumina dispersed in zirconia (ADZ) and zirconia-toughened alumina (ZTA), were investigated. These ceramics are made by...
A wear measurement method based on the comparison of local surface heights (1998)
Rooij De, Dr.ir. M.B., Schipper, Prof.dr.ir. D.J.
A new wear measurement method capable of measuring changes of the microgeometry due to wear by image processing techniques is presented. An advantage of this method over other methods is that it...
A wear measurement method based on the comparison of local surface heights (1998)
Rooij De, Dr.ir. M.B., Schipper, Prof.dr.ir. D.J.
A new wear measurement method capable of measuring changes of the microgeometry due to wear by image processing techniques is presented. An advantage of this method over other methods is that it...
Effects of a second phase on the tribological properties of Al2O3 and ZrO2 ceramics (1997)
He, Dr. Y., Winnubst, Dr. A.J.A., Schipper, Prof.dr.ir. D.J., Burggraaf, Prof.dr.ir. A.J., Verweij, Prof.dr.ir. H.
The tribological properties of four different materials are investigated, tetragonal zirconia (Y-ZTP), Al2O3 dispersed in Y-TZP (ADZ), ZrO2 dispersed in Al2O3 (ZTA) and Al2O3 (with 300 ppm MgO)....
Effects of a second phase on the tribological properties of Al2O3 and ZrO2 ceramics (1997)
He, Dr. Y.J., Winnubst, Dr. A.J.A., Schipper, Prof.dr.ir. D.J., Burggraaf, Prof.dr.ir. A.J., Verweij, Prof.dr.ir. H.
The tribological properties of four different materials are investigated, tetragonal zirconia (Y-ZTP), Al2O3 dispersed in Y-TZP (ADZ), ZrO2 dispersed in Al2O3 (ZTA) and Al2O3 (with 300 ppm MgO)....
Visscher, Ir. H., Rooij De, Dr.ir. M.B., Vroegop, Ir. P.H., Schipper, Prof.dr.ir. D.J.
To diminish wear in tribological systems it is not always necessary to provide the entire surface with a wear resistant layer. Depending on the application it is sufficient to harden locally the load...
He, Dr. Y., Winnubst, Dr. A.J.A., Schipper, Prof.dr.ir. D.J., Bakker, Ing. P.M.V., Burggraaf, Prof.dr.ir. A.J., Verweij, Prof.dr.ir. H.
The friction and wear behaviour of ZrO2-Y203, ZrO2-Y203-CeO2 and ZrO2-A1203 composite ceramics against hardened steel AISI-52100 were investigated using a pin on plate configuration under...
Visscher, Ir. H., Rooij De, Dr.ir. M.B., Vroegop, Ir. P.H., Schipper, Prof.dr.ir. D.J.
To diminish wear in tribological systems it is not always necessary to provide the entire surface with a wear resistant layer. Depending on the application it is sufficient to harden locally the load...
He, Dr. Y.J., Winnubst, Dr. A.J.A., Schipper, Prof.dr.ir. D.J., Bakker, Ing. P.M.V., Burggraaf, Prof.dr.ir. A.J., Verweij, Prof.dr.ir. H.
The friction and wear behaviour of ZrO2-Y203, ZrO2-Y203-CeO2 and ZrO2-A1203 composite ceramics against hardened steel AISI-52100 were investigated using a pin on plate configuration under...
A wear-resistant zirconia ceramic with low dry-friction
Winnubst, Dr. A.J.A., Ran, Dr. S., Wiratha, Ing. K.W., Blank, Prof.Dr.Ing. D.H.A., Pasaribu, Dr. H.R., Sloetjes, Ir. J.W., ...
Hydrodynamic modelling of hydrostatic magnesium extrusion
Moodij, Ing. E., Rooij De, Dr.ir. M.B., Schipper, Prof.dr.ir. D.J.
Wilson’s hydrodynamic model of the hydrostatic extrusion process is extended to meet the geometry found on residual billets. The transition from inlet to work zone of the process is not considered...
A wear-resistant zirconia ceramic with low dry-friction
Winnubst, Dr. A.J.A., Ran, Dr. S., Wiratha, Ing. K.W., Blank, Prof.Dr.Ing. D.H.A., Pasaribu, Dr. H.R., Sloetjes, Ir. J.W., ...
Hydrodynamic modelling of hydrostatic magnesium extrusion
Moodij, Ing. E., Rooij De, Dr.ir. M.B., Schipper, Prof.dr.ir. D.J.
Wilson’s hydrodynamic model of the hydrostatic extrusion process is extended to meet the geometry found on residual billets. The transition from inlet to work zone of the process is not considered...