| Biography | |
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 Prof. Frederic Sanchette Troyes Technology University, France |
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| Title: Structure, Morphology, and Mechanical Properties of High Temperature Resistant Ta(-Hf)-C/a-C:H Coatings Deposited by Conventional DC-Magnetron Sputtering or HiPIMS | |
| Abstract: Huan Luo1, Alexis de Monteynard2, 3, Mohammad Arab Pour Yazdi1, Alain Billard1, Frédéric Sanchette2, 3 3 1 Institut FEMTO-ST: CNRS, UTBM, Univ. Bourgogne Franche-Comté, Site de Montbéliard, F-90010 Belfort Cedex, France; 2 ICD LASMIS: Université de Technologie de Troyes, Antenne de Nogent, Pôle Technologique de Haute-Champagne, 52800 Nogent, France; 3 Nogent International Center for CVD Innovation, LRC CEA-ICD LASMIS, UT.T, Antenne de Nogent-52, Pôle Technologique de Haute-Champagne, 52800 Nogent, France Transition metal carbide films have been a hot topic for industrial applications and academic research for decades due to their high hardness, high melting point and excellent chemical stability. The metal carbide/amorphous carbon nanocomposites are widely used as protective coatings on surfaces of precision steel components, cutting tools and machinery components. TaC/a-C:Hfilms with varying carbon content within a narrow window were deposited employing HiPIMS in the Ar/C2H2 atmosphere. The DC deposited TaC/a-C:H reference films were prepared under the same deposition parameters for comparison. Analysis and comparison of the chemical bonding state, structure, mechanical and tribological properties, and oxidation resistance of thefilms were conducted, with the aim of emphasizing the differences in the nanocomposite structure and properties of the films correlated to deposition conditions. It reveals that the HiPIMS deposited TaC/a-C:H films outperform the DC deposited ones, exhibiting higher hard-ness and toughness, lower friction coefficient and wear rate, and stronger oxidation resistance. The results obtained on Ta, Hf, TaCx, HfCx, and TaxHf1-xCy coatings, deposited by reactive pulsed Direct Current (DC) magnetron sputtering of Ta or Hf pure metallic targets in Ar plus CH4 gas mixtures are also described. | |
| Biography: Frederic Sanchette did his PhD at the Laboratory of Surface Science of the Engineering School of Mines of Nancy. His work focused on the process development and aluminum coatings properties obtained by magnetron sputtering. In 1996, he joined an industrial group (H.I.T and Bodycote) to take up a project leader position. He then continued to work on the same theme (PVD and CVD coatings) at CEA (the French Alternative Energies and Atomic Energy Commission) in the Laboratory of Surface Treatment Processes of Grenoble, in France. Frederic Sanchette took charge of this laboratory in 2003. He is then the source of technologies’ transfer to industry. The opportunity was also given to him to invest in the field of integration of thin films for micro-components, including microbatteries or photovoltaic solar cells. After a brief stint at the University of Belfort-Montbéliard Technology, he obtained a position of full professor at Troyes Technology University (France) where he set up a delocalized antenna, which he heads. The topics are focused on thermal CVD and plasma-assisted CVD technologies. He is working on barrier films against severe environments and the development of solutions for components for energy. Concerning the latter topic, he is involved for instance in studies aimed at optimizing p-type TCO layers. Frédéric Sanchette (H21 Scopus; H24 Google Scholar) wrote or participated in the drafting of more than 65 publications in international journals and four chapters in two scientific books, he has filed out 15 patents. He communicated in over 70 international conferences. He has been also involved in over 30 national and international collaborative projects and has made several technology transfers to industr | |
