yoann PINOT

LaBoMaP (Laboratoire Bourguignon des Matériaux et Procédés), EA 3633, is a laboratory attached to the ENSAM, it is interested in the problems related to machining processes and its relations with materials. My intervention within the IMS team (Materials and Surfaces Engineering) has the role of reinforcing the technical support on PVD deposits and the characterization of thin films. Tasks performed : - Develop and fine-tune experimental set-ups. - Maintain PVD facilities - Prepare and characterise samples. - Write protocols, technical reports and scientific papers.

CIRIMAT (Centre Interuniversitaire de Recherche et d'Ingénierie des Matériaux) is a multidisciplinary research laboratory interested in the study of the major families of materials from design to in-service behaviour. My research work at CIRIMAT, UMR CNRS 5085, was part of a project involving academic and industrial partners. The final objective of this project was the realization by additive manufacturing of a compact reactor/exchanger with high efficiency for the production of dihydrogen. These installations are subject to strong environmental constraints (oxidation/corrosion). Thus, I was interested in studying the oxidation behaviour of Inconel 625 produced by additive manufacturing (LBM process) compared to the conventional production method (forging). Tasks performed : - Carry out bibliographic research - Organise and manage test campaigns - Develop, prepare and characterise samples - Communicate results (technical reports, project review)

I had always dreamed of visiting New Zealand, but I had put this project aside during my studies. This project came to fruition on my 30th birthday, which was my last chance to benefit from the "Working Holiday Visa".

Coiled tubing project: Development of Co based alloys capillary tubes from the coiled tubing process. Main responsibilities: - Ensure continuous development of expertise. - Develop and optimize existing processing (drawing, welding and annealing) - Resolve day-to-day barriers to workflow linked to metallurgical problems. - Ensure reliability of production processes based on metallurgical precautions - Create a database from scientific literature. - Perform tests, analyze the results and generate statistics.

Aim: Obtain more information in order to better understand the Ti1-xAlxN system used as a protective coating for the cutting tools. Title of PhD dissertation: “Micro- and nanostructure of Ti1-xAlxN thin films and wear close to the structural transition (fcc/hcp)”. Main responsibilities: - Create metal nitrides thin films from reactive magnetron sputtering - Study deposition parameters (target type, partial pressure,…) on the mechanical and physical characteristic of films. - Characterize the films structure from several fine analysis techniques (TEM, EELS, Anomalous diffraction and X-ray absorption spectroscopy). - Analyze the mechanical behavior of films mainly the wear resistance (Scratch test, friction test, indentation). - Model the X-ray absorption spectroscopy spectra by FEFF9 software. - Communicate the results obtained from writing reports and scientific papers and participating in scientific conferences. - Prepare and give mathematic courses for HND level students.

“Development of NiW textured substrate for the epitaxial growth of superconductors” - Using tools and tests: SEM, EBSD, XRD, GDMS, DTA. - Heat treatment, Hot- and cold rolling techniques.

“Study of salt bath nitriding process on high-alloy steel” - Using tools and tests: test of hardness, metallography. - Surface treatments, Annealing.

Aim: Obtain more information in order to better understand the Ti1-xAlxN system used as a protective coating for the cutting tools. Title of PhD dissertation: “Micro- and nanostructure of Ti1-xAlxN thin films and wear close to the structural transition (fcc/hcp)”. Scientific publications: Y.Pinot, M.-J. Pac, P. Henry, C. Rousselot, Ya.l. Odarchenko, D.A. Ivanov, C. Ulhaq-Bouillet, O. Ersen, M.-H. Tuilier, Thin Solid Films (2015) 577, 74-81, http://dx.doi.org/10.1016/j.tsf.2015.01.044 Y.Pinot, M.-H. Tuilier, M.-J. Pac, C. Rousselot and D. Thiaudière, J. Synchrotron Rad. (2015). 22, 1440-1449, https://doi.org/10.1107/S160057751501632X M.-J. Pac, Y.Pinot, S. Giljean, C. Rousselot, P. Delobelle, C. Ulhaq-Bouillet, M.-H. Tuilier, Thin Solid Films. (2017). 634, 96-106, https://doi.org/10.1016/j.tsf.2017.05.015 Y.Pinot, M.-H. Tuilier, M.-J. Pac, C. Rousselot, D. Thiaudière, C. Ulhaq-Bouillet, Thin Solid Films. (2018). 649, 160-166, https://doi.org/10.1016/j.tsf.2018.01.024