The operation modes of a plasmatron for powder coating spraying have been studied. has node annular input and gasdynamic focusing the powder, outlet holes nozzle-anode are made in form rectangular narrowing-expanding channels (No.34334 RK: IPC H05H 1/42). dynamics trajectories particles were investigated. paper analyzes influence arc current working gas flow rate on structure properties obtaine...

Porous materials are widely used in various fields requiring thermal insulation properties, such as the aircraft industry, with barrier coatings. In applications, plasma-sprayed yttria-stabilized zirconia proved to be a highly effective insulating coating. With higher void content, aluminum silicate space industry (Intermediate eXperimental Vehicle, for instance) due their low density and condu...

Abstract In plasma spraying, instabilities and fluctuations of the jet have a significant influence on particle in-flight temperatures velocities, thus affecting coating properties. This work introduces new method to analyze stability jets using high-speed videography. An approach is presented, which digitally examines images determine size core. By correlating this with acquisition time, time-...