Publications by Jean-François Despois

Influence of quench rate and microstructure on bendability of AA6016 aluminum alloys

Andreas Mortensen, Frédéric Diologent, Andreas Rossoll, Jean-François Despois, Cyrille Bezençon

The influence of the quench rate after solution treatment on the bendability of AA6016 aluminum alloy sheets was investigated. Crack initiation during bending tests is found to be independent of quench rate whereas crack propagation is decreased after rapi ...

Elsevier2013

The plasticity size effect in replicated microcellular aluminium

Andreas Mortensen, Jean-François Despois

Microcellular aluminium can be produced by replication in porous material with pores across a wide range of sizes but with otherwise identical structures. Compressive tests reveal a plasticity size effect, with samples showing higher strengths and higher r ...

Elsevier2013

Uniaxial deformation of microcellular metals: model systems and simplified analysis

Andreas Mortensen, Frédéric Diologent, Yves Conde, Sébastien Philippe Soubielle, Randoald Müller, Etienne Combaz, Jean-François Despois

Microcellular aluminium can be produced by a process known as replication; this involves the infiltration of a packed bed of NaCl particles which are subsequently leached after metal solidification. The resulting material features a uniform distribution of ...

Springer2009

Influence of the infiltration pressure on the structure and properties of replicated aluminium foams

Andreas Mortensen, Jean-François Despois

2007

Replication processing of highly porous materials

Andreas Mortensen, Yves Conde, Jean-François Despois

2006

Uniaxial deformation of microcellular metals

Andreas Mortensen, Jean-François Despois, Randoald Müller

2006

The effect of preform processing on replicated aluminium foam structure and mechanical properties

Andreas Mortensen, Jean-François Despois

2006

Sintering of NaCl powder: Mechanisms and first stage kinetics

Andreas Mortensen, Jean-François Despois

Isothermal NaCl sintering experiments are conducted between 500 and 790 degrees C on powders 75, 100, 150 and 400 mu m in average diameter. Along with literature data, the results are compared with theoretical predictions for the initial stage of sintering ...

2006

Replicated aluminium foam : processing and properties

Jean-François Despois

This thesis explores the processing and properties of microcellular aluminium-based materials produced by replication. It includes the development of a pressure infiltration process for net-shape component production, structural characterization of the foa ...

EPFL2005

Permeability of open-pore microcellular materials

Andreas Mortensen, Jean-François Despois

2005