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Wall friction and Janssen effect in the solidification of suspensions
Brice Saint-Michel, Marc Georgelin, Sylvain Deville +1
We address the mechanical effect of rigid boundaries on freezing suspensions. For this we perform the directional solidification of monodispersed suspensions in thin samples and we…
Ice-templated poly(vinylidene fluoride) ferroelectrets
Yan Zhang, Chris R. Bowen, Sylvain Deville
Ferroelectrets are piezoelectrically-active polymer foams that can convert externally applied loads into electric charge. Existing processing routes used to create pores of the des…
Time lapse, three dimensional in situ imaging of ice crystal growth in a colloidal silica suspension
Sylvain Deville, Jérôme Adrien, Eric Maire +2
The freezing of colloidal suspensions is encountered in many natural and engineering processes such as the freezing of soils, food engineering, and cryobiology. It can also be used…
Influence of particle size on ice nucleation and growth during the freeze-casting process
Sylvain Deville, Eric Maire, Audrey Lasalle +4
The solidification behaviour of suspensions of alumina particles during directional solidification is investigated here by in situ observations using X-ray radiography and tomograp…
Reliability assessment in advanced nanocomposite materials for orthopaedic applications
Jérôme Chevalier, Paola Taddei, Laurent Gremillard +8
Alumina-zirconia nano-composites were recently developed as alternative bearing materials for orthopedics. Previous, preliminary reports show that such alumina-zirconia nanocomposi…
Nanostructured Ceramic Oxides with a Slow Crack Growth Resistance Close to Covalent Materials
Jérôme Chevalier, Sylvain Deville, Gilbert Fantozzi +5
Oxide ceramics are sensitive to slow crack growth because adsorption of water can take place at the crack tip, leading to a strong decrease of the surface energy in humid (or air)…