Microstructure and mechanical properties of an Al–TiC metal matrix composite obtained by reactive synthesis

Autor: B. Gardiola, Nikhil Karnatak, Olivier Dezellus, Sabine Lay, Olivier Martin, Nassim Samer, Laurent Chaffron, Hiroki Kurita, Jérôme Andrieux, Sophie Gourdet

Publikováno v: Composites Part A: Applied Science and Manufacturing
Composites Part A: Applied Science and Manufacturing, Elsevier, 2015, 72, pp.50-57. ⟨10.1016/j.compositesa.2015.02.001⟩
Composites Part A: Applied Science and Manufacturing, 2015, 72, pp.50-57. ⟨10.1016/j.compositesa.2015.02.001⟩

A metal matrix composite has been obtained by a novel synthesis route, reacting Al 3 Ti and graphite at 1000 °C for about 1 min after ball-milling and compaction. The resulting composite is made of an aluminium matrix reinforced by nanometer sized T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39a424dbe51d34a60d9043bb51fe104a
https://doi.org/10.1016/j.compositesa.2015.02.001

In Situ Structural Evolution of Steel-Based MMC by High Energy X-Ray Diffraction and Comparison with Micromechanical Approach

Autor: Mickael Mourot, Nikhil Karnatak, Elisabeth Aeby-Gautier, Olivier Martin, Guillaume Geandier, Sabine Denis, Moukrane Dehmas

Publikováno v: Materials Science Forum. :313-320

In situ high energy X-ray diffraction synchrotron was used to provide direct analysis of the transformation sequences in steel-based matrix composite (MMC) reinforced with TiC particles. Evolution of the phase fractions of the matrix and TiC particle

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f85f6a5203bd62c344cc6f822714765d
https://doi.org/10.4028/www.scientific.net/msf.768-769.313

Temperature control during Spark Plasma Sintering and application to up-scaling and complex shaping

Autor: Alain Couret, Nikhil Karnatak, Marc Thomas, Jean-Francois Castagne, Sophie Le Gallet, Lise Durand, Yannick Le Berre, Thomas Voisin

Publikováno v: Journal of Materials Processing Technology
Journal of Materials Processing Technology, Elsevier, 2013, 213, pp.269--278. 〈10.1016/j.jmatprotec.2012.09.023〉
Journal of Materials Processing Technology, 2013, 213, pp.269--278. ⟨10.1016/j.jmatprotec.2012.09.023⟩
Journal of Materials Processing Technology, Elsevier, 2013, 213, pp.269--278. ⟨10.1016/j.jmatprotec.2012.09.023⟩

International audience; The determination and the homogeneity of the sample temperature during consolidation of powders by Spark Plasma Sintering (SPS) are addressed. Densifications were carried out in three different facilities differing by their co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d758d041c2b4331cbc8da99e19b5b8ae
https://hal.archives-ouvertes.fr/hal-00789844

Microstructural and mechanical comparison of Ti+15%TiCp composites prepared by free sintering, HIP and extrusion

Autor: Frank Montheillet, Olivier Dezellus, Nikhil Karnatak, Sébastien Saunier, Jean-Baptiste Fruhauf, Jérôme Roger, Christophe Desrayaud, Sophie Gourdet, Nathalie Peillon

Publikováno v: Materials Science and Engineering: A
Materials Science and Engineering: A, Elsevier, 2012, 554, pp.22-32. ⟨10.1016/j.msea.2012.05.096⟩

International audience; Ti +15%TiCp composites were prepared by three different powder metallurgy techniques: free sintering, HIPing and direct powder extrusion. The microstructures and textures were characterized by EBSD while the Ti/TiC reaction, w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0a000e42ecd90ec9c99e5873eb41747
https://hal-emse.ccsd.cnrs.fr/emse-00829389

TiC nucleation/growth processes during SHS reactions

Autor: Benoit, Cochepin¹, Ellen, Heian¹, Nikhil, Karnatak¹, Dominique, Vrel², Sylvain, Dubois¹ sylvain.dubois@univ-poitiers.fr

Publikováno v: Powder Technology. Sep2005, Vol. 157 Issue 1-3, p92-99. 8p.