Dominique Chatain

Activity

mouillage, interfaces, heteroépitaxie

Thèmes

Wetting and Interfaces

• Interfaces in metal-metal & metal-oxide systems
• Hetero-epitaxy & orientation relationships
• Interfaces in complex alloys

Recherche

Orientation relationship & film microstructure: The orientation relationship of fcc crystals on crystalline substrates is shown to strongly depend on the atomic steps present on the substrate plane. Our studies merge EBSD and HRTEM experiments, atomistic calculations and the theory of phase transformation. Based on our results, reverse engineering allow to monitor the microstructure of fcc films on substrates of selected orientation and chemistry. The film microstructures which are obtained span from single-crystal to poly-crystal containing specific populations of grain boundaries.

Complexions at interfaces in multinary alloys: Modeling of surfaces and interfaces (grain boundaries) of complex concentrated multinary alloys has been developped using atomistic and thermodynamic approaches. The complexions (chemistry and structure) of these interfaces deviate from those found in classical (diluted) alloys. They are analyzed with respect to the outstanding properties of these new alloys due to surfaces or interfaces.

Parcours

CURRICULUM  VITAE

• Institut National Polytechnique de Grenoble, PhD in Physics (1983)
• Institut National Polytechnique de Grenoble, Engineer’s Degree in Metallurgy (1979)

• 1997-present, CNRS Senior Reseacher, Centre Interdisciplinaire de Nanosciences de Marseille (CINaM) (former Centre de Recherche en Matière Condensée et Nanosciences, and former Centre de Recherche sur les Mécanismes de la Croissance Cristalline), Marseille
• 1991-1996, CNRS Researcher, Centre de Recherche sur les Mécanismes de la Croissance Cristalline, Marseille
• 1981-1990, CNRS Researcher, Laboratoire de Thermodynamique et Physico-Chimie Métallurgiques, Grenoble

• Von Humbolt Fellowship (2020)
• American Ceramic Society Fellowship (2018)
• Associate Researcher at Mines ParisTech (2016)
• Lady Davis Fellowship from the TECHNION (2014)
• Silver Medal of CNRS (2010)