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Plasma spray can be used to produce coatings. of virtually any metallic, cermet, or ceramic ma-. terial. The coatings are used for most of the types. of applications described in a subsequent section. The transferred plasma-arc process adds to. plasma spray the capability of substrate surface heat-. ing and melting. Figure 7 is a schematic repre-. sentation of the process.
PVD (Physical Vapor Deposition) coating is an alternative to the standard chrome plating method used to coat aluminum vehicle rims. PVD is a layering method, which sandwiches a metal alloy in between a base and top coat of powder coating. raw aluminum wheel is sprayed with a powder coat base. The wheel is then placed into a vacuumed chamber with a metal alloy cathode. The metal alloy cathode is then arced to create metallic ion plasma, which is then deposited onto the wheel in an even coating.