A Plasma Jet Operated by Sublimation Gases

Abstract

Evaluation of performance has been made empirically for an original type of plasma jet which is operated by using sublimation gases of solids. Both the production and the heating of the sublimation gases are conducted at the same time by arc discharges ; hence the working gases can be generated on demand. The extinctions and ignitions are repeatedly possible and instantaneous with the application or interruption of arc discharges when appropriate solids are employed as its charge, and the sublimation rate of the charge can be controlled by the arc intensity. measurements show that the efficiency of this plasma jet is in no way inferior to the ordinary gas plasma jet, and can be still improved by employing a composit type of charge solid or a consumption type of electrode in order that the evaporation gases may react and release high combustion energy.