Formation on solid-state surfaces of a monomolecular gas layer that acts to protect the surface in the case of friction in a rarefied medium
Abstract
The dynamics of formation of a monomolecular gas layer on an open surface is analyzed on the basis of a solution to a kinetic adsorption equation. Allowance is made for adsorption, desorption, and migration of molecules to free areas of the surface under external equilibrium conditions. Relations describing the formation rate of the layer are derived for various states of the gas at the surface. The results of the analysis permit determination of chamber pressures sufficient to simulate the influence of any degree of rarefication on friction processes.
- Publication:
-
Inzhenerno Fizicheskii Zhurnal
- Pub Date:
- December 1976
- Bibcode:
- 1976InFiZ..31.1039I
- Keywords:
-
- Friction Reduction;
- Gas-Solid Interfaces;
- Monomolecular Films;
- Rarefied Gas Dynamics;
- Solid Surfaces;
- Absorption;
- Desorption;
- Surface Reactions;
- Fluid Mechanics and Heat Transfer