Axial gas transports in DC-discharges in mixtures of gases

Abstract

Selective transports in DC-discharges in gas mixtures cause a cataphoretic segregation of the gas mixture. The two transports treated are: 1) the ion transport and 2) the transport due to the momentum transfer of the electrons and ions to the gas. A stationary state will occur as a result of the counteracting diffusion transport. The density distribution of the gases along the positive column is derived as a function of time, and in the stationary state.