Modelling Tribochemical Reactions of Lubricants in the UHV Analytical Tribometer

Gas Phase Lubrication (GPL) is used here to lubricate counterparts of a tribological system with a partial pressure of a gas.Because the rheological contribution (Hydrodynamic and EHL) of gas is practically negligible, the role of tribochemical reactions is of prime importance to achieve Aquarium Substrate a good performance.Different sites of the contact zone are subjected to chemical reactions: inside-contact acid-base reactions, Banners plasma-induced reactions in the vicinity of the contact area and nascent surfaces in the extended part of the worn surface.Here we highlight the interest of GPL in modeling boundary lubrication.