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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.
This âspray weldingâ process is known by many names including Plasma Spray, HVOF, Arc Spray, Flame Spray, and Metalizing. Thermal sprayed coatings are typically applied to metal substrates, but can also be applied to some plastic substrates. Thermal sprayed coatings uniquely enhance and improve the performance of the component.