The Plasma Spray Process is basically the spraying of molten or heat softened material onto a surface to provide a coating. Material in the form of powder is injected into a very high temperature plasma flame, where it is rapidly heated and accelerated to a high velocity. The hot material impacts on the substrate surface and rapidly cools forming a coating.
Advantages of coating
1: High density and zero porosity.
2: High bonding strength and metallurgical bonding
3: Lower dilution rate
4: Faster melt duplicate rate and structure with high density.