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Friction behavior of Organic Friction Modifiers: an experimental and numerical approach

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Through several examples of research studies carried out in our research group on the friction behavior of carboxylic acids or amines, our experimental and numerical approach will be presented. Diffusion of additives in base oil will be first briefly considered. The adsorption of additives molecules on the substrate will be then investigated through in-situ adsorption experiments followed by XPS characterizations and compared to DFT calculations. In-situ AFM is also carried out to understand the organization of molecules on the steel surface. The friction behavior of Organic Friction Modifier molecules in a steel-steel contact is also investigated experimentally and through Molecular Dynamics simulations.

This talk is part of the BPI Seminar Series series.

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