Plasma spray is a high heat thermal spray system which uses super heated plasma to melt the spray material. This high heat is the main selling point of plasma spray and allows for the application of ceramic coatings. Plasma spray uses an electrical arc to dissociate and ionize hydrogen and argon gases. The plasma spray gun injects powder into this spray stream to apply various types of coatings.
For specialized applications, this process can be done in low pressure atmosphere environments. The particles will oxidize less which results in a considerably higher quality coating.
