Rion, J., Leterrier, Y., Månson, J.-A. E.
The formation of resin fillet between honeycomb core cell walls and skin in light sandwich structures was studied to gain a better understanding of the bonding process. A method was developed for...
Schmidt, L. E., Yib, S., Jinb, Y. H., Leterrier, Y., Månson, J.-A. E.
Different photocurable acrylates, including two hyperbranched monomers, are compared with an epoxy negative-tone photoresist (SU-8) with respect to their suitability for the fabrication of...
Durability of hybrid PECVD-based coatings on semicrystalline polymers (2008)
Rochat, G., Leterrier, Y., Garamszegi, L., Manson, J. A. E., Fayet, P.
The present work analyses silicon oxide coated polyester films, with attention paid to the effect of substrate process additives on the coating defect population, and on the coated film mechanical...
Rochat, G., Leterrier, Y., Fayet, P., Manson, J. A. E.
Uniaxial fragmentation tests were carried out in situ in a scanning electron microscope (SEM) on 10-nm-thick silicon oxide coatings deposited by plasma enhanced chemical vapor deposition on...
Rochat, G., Delachaux, A., Leterrier, Y., Manson, J. A. E., Fayet, P.
The influence of the surface morphology of semi-crystalline poly(ethylene terephthalate) (PET) and polyamide 12 (PA12) films on the adhesion and cohesion of thin oxide coatings is analysed, with...
Rochat, G., Leterrier, Y., Plummer, C. J. G., Manson, J. A. E., Szoszkiewicz, R., Kulik, A. J., ...
The influence of the surface morphology of semicrystalline polyamide 12 (PA12) on the adhesion of thin silicon oxide coatings is analyzed by means of uniaxial fragmentation tests and scanning...
Rochat, G., Leterrier, Y., Fayet, P., Manson, J. A. E.
The mechanical properties of ultrathin silicon oxide (SiOx) coatings plasma-deposited on poly(ethylene terephthalate) (PET) films were investigated with particular attention paid to the effect of...
Mechanical properties of SiOx gas barrier coatings on polyester films (2008)
Howells, D. G., Henry, B. M., Leterrier, Y., Månson, J.-A. E., Madocks, J., Assender, H. E.
This paper reports the impressive mechanical properties of 1 μm thick carbon-containing SiOx gas barrier coatings, characterised using the uniaxial fragmentation test. Such coatings have been found...
Andersons, J., Modniks, J., Leterrier, Y., Tornare, G., Dumont, P., Månson, J.-A. E.
Crack onset strain measurements of a confined layer in tension provide the means for layer toughness estimation. The procedure can be simplified if steady-state conditions prevail starting from the...
Ramier, J., Costa, N. D., Plummer, C. J. G., Leterrier, Y., Månson, J.-A. E., Eckert, R., ...
The working electrode of a dye-sensitized photovoltaic fiber is constituted of a porous TiO2 coated titanium wire. The cohesion and adhesion of such a brittle oxide coating on the ductile metal...
DUMONT , Pierre, Y. Leterrier, W. Balemans, A. Aniskevich, P. Timmermans, J. Andersons, ...
A theoretical modeling framework is proposed to follow shape and residual stress evolutions of layered flexible display structures with respect to coating deposition process, ambient temperature and...
Mechanical integrity of dye-sensitized photovoltaic fibres (2007)
Ramier, J., Plummer, C.J. G., Leterrier, Y., Månson, J .- A. E., Eckert, B., Gaudiana, R.
The development of photovoltaic (PV) devices based on dye-sensitized TiO2-coated Ti fibers has opened up exciting possibilities for novel PV textile applications. The cohesion and adhesion of the...
Coating fragmentation by branching cracks at large biaxial strain (2007)
The fragmentation behaviour of a thin brittle coating attached to a ductile substrate subjected to equibiaxial quasi-static in-plane tension is studied. The experimentally observed cracking patterns...
Jin, Young-Hyun, Cho, Young-Ho, Schmidt, L. E., Leterrier, Y., Månson, J.-A. E.
A novel UV-curable low-stress hyperbranched polymer (HBP) micromolding process is presented for the fast and low-temperature fabrication of hydrophilic microfluidic devices. Process, material and...
Analysis of thin film cracking and buckling on compliant substrate by fragmentation test (2007)
Andersons, J., Tarasovs, S., Leterrier, Y
Application of coating fragmentation test for determination of coating properties is considered. A probabilistic model of coating fragmentation under uniaxial tensile loading is applied for coating...
Durability of aminosilane-silica hybrid gas-barrier coatings on polymers (2007)
Singh, B., Bouchet, J., Leterrier, Y., Månson, J.-A. E., Rochat, G., Fayet, P.
Aminosilane solutions with pH equal to 8 and to 11 were applied and cured on SiO2 coated poly(ethylene terephthalate) (PET) films. The permeability of the silane-silica hybrid coating on PET was...
Time-intensity transformation and internal stress in UV-curable hyperbranched acrylates (2007)
Schmidt, L. E., Schmaeh, D., Leterrier, Y., Månson, J.-A. E.
The photocuring of three different highly functional acrylates—Di-pentaerythritol penta/hexaacrylate (DPHA) and two hyperbranched molecules (HBP), one with a stiff polyester and one with a more...
Evaluation of interfacial stress transfer efficiency by coating fragmentation test (2007)
Andersons, J., Leterrier, Y., Tornare, G., Dumont, P., Månson, J.-A. E.
Probabilistic model of coating fragmentation under uniaxial tensile loading is developed. Analytical expressions of the crack spacing evolution are obtained for small-strain and large-strain...
Schmidt, L. E., Leterrier, Y., Schmaeh, D., Månson, J.-A. E., James, D., Gustavsson, E., ...
The photo-curing behavior of reactive blends of dipentaerythritol penta/hexaacrylate (DPHA) with an acrylated hyperbranched polyester and an acrylated hyperbranched polyether was investigated by...
Mechanical integrity analysis of multilayer insulator coatings on flexible steel substrates (2007)
Plojoux, J., Leterrier, Y., Månson, J.-A. E., Templier, F.
The cohesive and adhesive properties, and related critical radius of curvature of thin multilayer insulator coatings on a 152 μm thick flexible steel substrate were investigated using tensile...
Dumont, P., Tornare, G., Leterrier, Y., Månson, J.-A. E.
Intrinsic, thermal, and hygroscopic contributions to the in-plane residual stress in silicon nitride films on polyimide substrates are identified, based on iso-hygric thermal ramps and isothermal...
Ultra-thin hybrid organic/inorganic gas barrier coatings on polymers (2007)
Singh, B., Bouchet, J., Rochat, G., Leterrier, Y., Månson, J.-A. E., Fayet, P.
The oxygen transmission rate of 48 nm thick SiO2 coatings on a poly(ethylene terephthalate) (PET) substrate was reduced by a factor of three after applying an 8 nm thick layer of oligomerized...
Bieder, A., Gondoin, V., Leterrier, Y., Tornare, G., V. Rohr, P. R., Månson, J.-A. E.
Cohesive and adhesive properties of silicon oxide barrier coatings deposited from an oxygen/hexamethyldisiloxane gas mixture by plasma enhanced chemical vapor deposition, with controlled...
Jansson, N.E., Leterrier, Y., Medico, L., Månson, J.-A.E.
Determination of fracture parameters for brittle coatings with a sub-micron thickness is not a straightforward task. Since direct evaluation through testing with for instance a double cantilever beam...
Formation of aminosilane-oxide interphases (2006)
Bouchet, J., Pax, G. M., Leterrier, Y., Michaud, V., Månson, J.-A. E.
The aim of this work is to understand the interactions and interphase formation mechanisms between a liquid aminosilane oligomer (γ -APS) and glass, steel or gold surfaces as a function of the pH of...
Modeling of multiple cracking and decohesion of a thin film on a polymer substrate (2006)
Jansson, N.E., Leterrier, Y., Månson, J.-A.E.
Thin brittle films on polymer substrates are finding increasing use as gas barriers for example in the medical and food packaging industries and also for the next generation of ultra-light displays...
Pilati, F., Messori, M., Fabbri, P., Leterrier, Y., Singh, B., Månson, J.-A. E.
Organic–inorganic hybrid materials were prepared using the sol–gel process in order to improve the scratch resistance of poly(methyl methacrylate) (PMMA) substrates. Sol–gel solutions based on...
Macroporous epoxy networks via chemically induced phase separation (2006)
Kiefer, J., Hilborn, J. G., Månson, J.-A. E., Leterrier, Y., Hedrick, J. L.
Adhesion study of SiOx/PET films: comparison between scratch test and fragmentation test (2006)
Pitton, Y., Hamm, S. D., Mathieu, H. J., Leterrier, Y., Månson, J.-A. E.
An analysis of disorder in thin silicon oxide coatings (2006)
Handge, U. A., Leterrier, Y., Månson, J.-A. E., Sokolov, I. M., Blumen, A.
Two scaling domains in multiple craking phenomena (2006)
Handge, U. A., Leterrier, Y., Rochat, G., Sokolov, I. M., Blumen, A.
Recycling of poly(ethylene terephthalate) into closed-cell foams (2006)
Japon, S., Leterrier, Y., Månson, J.-A. E.
The increase of the elongational viscosity of recycled poly(ethylene terephthalate) (PET) is investigated with the aim of producing closed-cell foams by means of a cost-effective reactive extrusion...
Wyser, Y., Leterrier, Y., Månson, J.-A. E.
Extending the useful life of materials through recycling has proven to be an efficient means of reducing natural resource use and limiting the production of waste. In the case of polymer-based...
Life Cycle Assessment of Biofibres Replacing Glass Fibres as Reinforcement in Plastics (2006)
Corbière-Nicollier, T., Laban, B. G., Lundquist, L., Leterrier, Y., Månson, J.-A. E., Jolliet, O.
This article aims to determine the environmental performance of China reed fibre used as a substitute for glass fibre as reinforcement in plastics and to identify key environmental parameters. A life...
Japon, S., Luciani, A., Nguyen, Q. T., Leterrier, Y., Månson, J.-A. E.
The use of a tetrafunctional epoxy-based additive to modify the molecular structure of poly(ethylene terephthalate) (PET) was investigated with the aim of producing PET foams by an extrusion process....
Biaxial fragmentation of thin silicon oxide coatings on polyethylene terephthalate (2006)
Leterrier, Y., Pellaton, D., Mendels, D., Glauser, R., Andersons, J., Månson, J.-A. E.
Crack patterns of 53 nm and 103 nm thick silicon oxide coatings on poly(ethylene terephthalate) films are analyzed under equibiaxial stress loading, by means of a bulging cell mounted under an...
Internal Stresses and Adhesion of Thin Silicon Oxide Coatings on Poly(ethylene terephthalate) (2006)
Leterrier, Y., Wyser, Y., Månson, J.-A. E.
The effect of internal stresses on the cohesion and adhesion of a thin silicon oxide (SiOx) oxygen-barrier coating, evaporated on a poly(ethylene terephthalate) (PET) film substrate was studied....
Analysis of failure mechanisms in platelet-reinforced composites (2006)
Wyser, Y., Leterrier, Y., Månson, J.-A. E.
The short-term mechanical strength of platelet-reinforced polymer composites was modeled using classical two-dimensional stress-transfer analysis. The stress field in the platelet and at the...
The influence of internal stresses on the microbond test 1 : Theoretical analysis (2006)
Leterrier, Y., Månson, J.-A. E.
The present work focuses on the interfacial mechanical behaviour of a model composite consisting of a solid droplet on a fibre, generally referred to as the microbond test. The interfacial adhesion...
The influence of internal stresses on the microbond test II : Physical aging and adhesion (2006)
Leterrier, Y., Månson, J.-A. E.
The present work investigated the effects of physical aging on interfacial adhesion and internal stresses using single-fibre model composites. First, the stress state of the interface and its...
Hyperbranched Polymer Layered Silicate Nanocomposites (2006)
Plummer, C. J. G., Garamszegi, L., Leterrier, Y., Rodlert, M., Månson, J.-A. E.
Andersons, J., Leterrier, Y., Fescenko, I.
Crack patterns of 100-nm thick silicon oxide coatings on poly(ethylene terephthalate), polypropylene and polyamide films are analyzed under equibiaxial stress loading. The loading is achieved by...
Rheological Properties of Hyperbranched Polymer/Poly(ethylene Terephthalate) Reactive Blends (2006)
Kil, S. B., Augros, Y., Leterrier, Y., Månson, J.-A. E.
The rheological properties in solution, in shear and in uniaxial elongation of poly(ethylene terephthalate) (PET) reacted together with hyperbranched polymers (HBPs) were investigated. Two different...
Durability of Nanosized Oxygen-Barrier Coatings on Polymers (2006)
Research on silicon oxide thin films developed as gas-barrier protection for polymer-based components is reviewed, with attention paid to the relations between (i) coating defects, cohesive strength...
Novel Pulp Fibre Reinforced Thermoplastic Composites (2006)
Lundquist, L., Marque, B., Leterrier, Y., Månson, J.-A. E.
The reinforcement potential of pulp fibres is presently not fully explored in thermoplastic composites. One of the reasons is that currently used processing methods comprise several severe...
Rochat, G., Delachaux, A., Leterrier, Y., Månson, J.-A. E., Fayet, P.
The influence of the surface morphology of semi-crystalline poly(ethylene terephthalate) (PET) and polyamide 12 (PA12) films on the adhesion and cohesion of thin oxide coatings is analysed, with...
Rochat, G., Leterrier, Y., Fayet, P., Månson, J.-A. E.
Uniaxial fragmentation tests were carried out in situ in a scanning electron microscope (SEM) on 10-nm-thick silicon oxide coatings deposited by plasma enhanced chemical vapor deposition on...
Durability of hybrid PECVD-based coatings on semicrystalline polymers (2006)
Rochat, G., Leterrier, Y., Garamszegi, L., Månson, J.-A. E., Fayet, P.
The present work analyses silicon oxide coated polyester films, with attention paid to the effect of substrate process additives on the coating defect population, and on the coated film mechanical...
Leterrier, Y., Medico, L., Demarco, F., Månson, J.-A. E., Betz, U., Escola, M. F., ...
The mechanical integrity of tin-doped indium oxide (ITO) thin films sputtered onto a high temperature aromatic polyester developed for flexible display applications was investigated by means of...
Lundquist, L., Arpin, G., Leterrier, Y., Berthold, F., Lindström, M., Månson, J.-A. E.
The potential of pulp fiberreinforced thermoplastics is currently not fully explored in composites. One of the main reasons is that pulp fibers are extracted for the use in papermaking and are thus...
Compression Behavior of Pulp Fibre Networks (2006)
Lundquist, L., Willi, F., Leterrier, Y., Månson, J.-A. E.
The forced compression behavior of random 3D and 2D pulp fiber networks is investigated. Existing theories are found to describe well the evolution of packing stress with fiber volume fraction for...
Rochat, G., Leterrier, Y., Plummer, C. J. G., Månson, J.-A. E., Szoszkiewicz, R., Kulik, A. J., ...
The influence of the surface morphology of semicrystalline polyamide 12 PA12! on the adhesion of thin silicon oxide coatings is analyzed by means of uniaxial fragmentation tests and scanning...
Hyperbranched Polymer/Montmorillonite Clay Nanocomposites (2006)
Rodlert, M., Plummer, C. J. G., Garamszegi, L., Leterrier, Y., Grünbauer, H. J. M., Månson, J.-A. E.
Two to four pseudo-generation aliphatic hyperbranched polymers (HBPs) with OH end-groups have been solution processed with various types of montmorillonite (MMT) layered alumino-silicate clays, and...
Rheological behavior of hyperbranched polymer/montmorillonite clay nanocomposites (2006)
Rodlert, M., Plummer, C. J. G., Leterrier, Y., Månson, J.-A. E., Grünbauer, H. J. M.
The equilibrium rheological properties of a range of isotropic exfoliated and intercalated hyperbranched polymer (HBP)/montmorillonite (MMT) clay nanocomposites have been investigated using low...
The effect of defect location on coating fragmentation patterns under biaxial tension (2006)
Fragmentation of a coating possessing orthogonal preferential crack propagation directions is modeled for equibiaxial tensile loading. Two plausible cracking scenarios are compared, caused by flaws...
Advanced fragmentation stage of oxide coating on polymer substrate under biaxial tension (2006)
Crack patterns of 100-nm-thick silicon oxide coating on polypropylene film subjected to equibiaxial stress loading are studied experimentally. The loading is achieved by means of a bulging cell...
Rochat, G., Leterrier, Y., Fayet, P., Månson, J.-A. E.
The mechanical properties of ultrathin silicon oxide (SiOx ) coatings plasma-deposited on poly(ethylene terephthalate) (PET) films were investigated with particular attention paid to the effect of...
Stress controlled gas-barrier oxide coatings on semi-crystalline polymers (2006)
Rochat, G., Leterrier, Y., Fayet, P., Månson, J.-A. E.
Thin silicon oxide (SiOx) barrier coatings formed by plasma enhanced chemical vapor deposition on poly(ethylene terephthalate) (PET) substrates were subjected to post-deposition annealing treatments...
Photorheology of Fast UV Curing Multifunctional Acrylates (2006)
Schmidt, L. E., Leterrier, Y., Wilhelm, M., Månson, J.-A. E.
The fast photopolymerization of different multifunctionalacrylates was analyzed by means of photorheology.The materials studied included a penta/hexaacrylatemonomer and two different acrylated...