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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.
However, there is a. basic concept binding all these areas together; that. coatings are applied to substrates by various means. to provide protection and/or decoration. Depending. on the means of application and thickness, the coating. is further classified as paints, inks, etc. This paper will show how zirconium can be used to. improve properties of surface coatings in specific high. usage areas. In particular it will concentrate on the use. of zirconium in inks and to a lesser extent, paints. In both inks and paints there has been movement. away from long established systems.