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SIMaP laboratory publishes scientific results in various peer-reviewed international journals. List of those papers and more can be found on the open archive HAL.

ESRF Spotlight: Fast in-situ nanoimaging of particle sintering

ESRF Spotlight Fast in situ imaging
Neck curvature, a parameter critical to the understanding of sintering, was determined precisely for the first time for the sintering of a glass powder. This was achieved by studying the microstructure evolution during sintering by high-temperature in-situ nanotomography using an unprecedented combination of fast scan time and high resolution. Those results are gathered in a paper in Materials Today journal and are also the subject of a ESRF' SPOTLIGHT ON SCIENCE.

Fast in situ 3D nanoimaging: a new tool for dynamic characterization in materials science, J. Villanova, R. Daudin, P. Lhuissier, D. Jauffrès, S. Lou, C.L. Martin, S. Labouré, R. Tucoulou, G. Martínez-Criado, L. Salvo, Materials Today (2017); doi: 10.1016/j.mattod.2017.06.0

Scientific Reports: From powders to bulk metallic glass composites.

Metallic glass composites
One way to adjust the properties of a material is by changing its microstructure. This concept is not easily applicable on bulk metallic glasses (BMGs), because they do not consist of grains or different phases and so their microstructure is very homogeneous. One obvious way to integrate inhomogeneities is to produce bulk metallic glass composites (BMGCs). Here we show how to generate BMGCs via high-pressure torsion (HPT) starting from powders (amorphous Zr-MG and crystalline Cu). This approach has been developed in partnership with the Erich Schmid Institute of Materials Science in Leoben, Austria, and demonstrated that by changing the applied shear strains, the refinement of the microstructure is adjustable. The refinement of microstructure increases the hardness and a hardness higher than the initial BMG can be obtained.

From powders to bulk metallic glass composites
Lisa Krämer, Yannick Champion, Rienhard Pipan, Scientific Reports (2017)
DOI:10.1038/s41598-017-06424-4

Written by Sabine Lay

Date of update March 21, 2018

Communauté Université Grenoble Alpes