The effect of polar molecules of a lubricating material on the force of friction

摘要

A model of interactions between molecular dipoles of the lubricating material (LM) and the metallic friction surface is proposed. An equation is derived relating the specific force of friction to the density of dislocations, the dipole moment of lubricating material molecules, the thickness of the surface layer and other parameters. It is demonstrated that the specific force of friction diminishes as dislocations become denser, the dipole moment of molecules increases and the surface layer on the friction body becomes thinner.