Centre National de la Recherche Scientifique

Université de Rouen
Institut des Matériaux
BP 12
76801 Saint Etienne Du Rouvray Cedex (France)


The CNRS is a government-funded research organisation, under the administrative authority of France's Ministry of Research. The CNRS research unit contributing to this project is the Groupe de Physique des Matériaux (GPM), UMR 6634, linked to its Institute of Physics (INP).
GPM is a Mixed Unit of Research (UMR) between the CNRS, the University of Rouen, and the INSA of Rouen with 70 employees (72% of scientists; 27% of which are female and half the teams have female leader) and 50 PhD & post-doc & invited Prof (66% are foreigners and 42% are female). Its activities are increasingly oriented towards nano-sciences and mainly deal with: phase transformation and segregation / diffusion phenomena; surface and interface phenomena (related to the project); magnetic and mechanical properties in nano-materials (metals, oxides or semiconductors); scientific instrumentation.
Researches performed at GPM are both fundamental and applied, and most investigated alloys have industrial applications: aerospace alloys, nuclear plant steels, permanent magnets, magnetic materials, etc. This Unit is the world leader for the 3D Atom Probe (3D-AP) technique. It has designed this new instrument in the early nineties and the latest generation, a laser-assisted wide-angle tomographic atom probe (LaWaTAP), is now available for brittle and resistive materials. GPM is member of the "ESP" (Energy and Propulsion Systems) Carnot Institute, of MOVE'O (R&D on private & public transportation) and C'Nano North-west competitivity centre. The team involved in the project has an activity in surface and interface analysis focused on HT oxidation of metals and alloys (first stages of oxidation), thermochemical surface treatment of metals and alloys (nitriding, deposits) and atmospheric ageing (atmospheric corrosion of metals and alloys). This team was the labelled unit EA-1290 (LASTSM) of the France's Ministry of Research before joining the GPM in 2008. The analytical facilities involved in this project are mainly non-destructive spectroscopic techniques (optical techniques requiring modelling of oxide/metal multilayer systems to obtain relevant surface information, Mössbauer spectroscopy as local probe for Fe- or Sn-containing materials), but also HRTEM, field ion microscopy and atom probe tomography for the characterisation of materials at the atomic scale.