du 18 janvier 2021 au 18 janvier 2021
Description :

Characterization of Surface Oxidation, Passivation and Corrosion Processes at the Nanoscale


Philippe Marcus
CNRS - Chimie ParisTech, PSL University
Institut de Recherche de Chimie Paris,
Physical Chemistry of Surfaces Research Group (PCS)
11 rue Pierre et Marie Curie, 75005 Paris (France)

Corrosion-induced failures of materials are observed at the macroscopic scale, but corrosion processes are surface processes taking place at the nanoscale and initiated at the atomic scale. Understanding corrosion of metal surfaces at atomic/nanometric scale is a key to a betterdesign and an improved control of engineering metals and protective coatings. This talk will focus on a surface science approach of corrosion and protection of metals and alloys. The topics will include key factors for the stability of surface oxide films on metals and alloys and key features of organic molecule-oxide-metal interactions for corrosion inhibition. The presented data will be based on the application of advanced surface analytical techniques, combined with electrochemical measurements and DFT modeling.

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