The analysis of melting and refining process for in-flight particles in supersonic plasma spraying

The velocity and temperature of the in-flight particles were reached maximum at the spraying distance of 80-100 mm. Particles were melted and broken into small child particles by plasma jet. The small child particles were accelerated to higher in-flight velocity by gas flow. Particles were completely melted when the spraying distance about of 95 mm at the time of 0.35 ms.66