Publication

Hexagonal OsB2: Sintering, microstructure and mechanical properties

Publications associées (82)

Reaction-induced phase separation in a PVAc/polyester blend

In blends of unsaturated polyester (UP), poly (vinyl acetate) (PVAc), and styrene, a reaction-induced phase separation occurs upon curing that is due to the crosslinking between styrene and the UP molecules. The evolution of the morphology was observed by ...

2006

Consolidation, microstructure and crystallography of dense NaNbO3 ceramics with ultra-fine grain size

Arnaud Magrez

The present study reports on the preparation and structural characterization of dense NaNbO3 ceramics with ultrafine grain size. Nanocrystalline raw powders obtained via microemulsion mediated synthesis were consolidated to green compacts, sinterforged to ...

2006

Phase separation at the fiber-matrix interface in composites based on a thermoplastic/polyester blend

Véronique Michaud, Xavier Bulliard

A study of the microstructure developing at the surface of glass fibers in a poly(vinyl acetate) (PVAc)/polyester blend is presented. Three different experimental methods are used: a technique based on the Wilhelmy method to measure the wettability of the ...

2005

Niobium nitride based thin films deposited by DC reactive magnetron sputtering

Due to their high hardness, high melting point and high chemical stability, transition metal nitrides present a great interest for various applications. This work constitutes a contribution to the understanding of the properties of Nb based binary and tern ...

EPFL2005

Charge ordering, stripes and phase separation in manganese perovskite oxides: An STM/STS study

Henrik Moodysson Rønnow

A microscopic characterisation of the phase transitions associated with colossal magnetoresistance (CMR) in manganese perovskite oxides is a very important ingredient in the quest of understanding its underlying mechanism. Scanning tunneling microscopy (ST ...

2005

Graded glass mat reinforced polypropylene

Véronique Michaud

In the impregnation process, when pressure is applied, the dry fiber preform is first compressed and then unloads as the matrix flows within the pores. It has been shown earlier that for glass mat-reinforced thermoplastic (GMT) materials, the time to provi ...

2005

Biomechanical properties of decellularized porcine common carotid arteries

Nikolaos Stergiopoulos, Sylvain Roy, Paolo Silacci

To analyze the effects of decellularization on the biomechanical properties of porcine common carotid arteries, decellularization was performed by a detergent-enzymatic procedure that preserves extracellular matrix scaffold. Internal diameter, external dia ...

2005

Strengthening mechanisms and thermal stability of arc deposited nanostructured TiAlN-based thin films

Titanium aluminium nitride (TiAlN)-based coatings are designed specially for applications where oxidation and wear resistance are primary demands, as in the case of cutting tools. Moreover the coatings are required to be thermally stable as well as have go ...

EPFL2004

Cationic Thionin Blue in the Channels of Zeolite Mordenite: A Single-Crystal X-ray Study

Philip Pattison

Single crystals of self-synthesized mordenite−Na were used for incorporation of the cationic dye molecule thionin blue (C12H10N3S+). The planar organic molecule (7.5 × 15 Å), which fits into the large 12-membered ring channel of mordenite, was incorporated ...

2004

Observation of fracture and plastic deformation during indentation and scratching inside the scanning electron microscope

Franz-Josef Haug, Johann Michler, Jean-Marc Breguet

During nanoindentation measurements of thin films the formation of cracks within the film as well as of pile-up or sink-in around the indent are known to affect significantly the precision of hardness and Young's modulus values. The crack pattern in brittl ...

2004

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