Characterization of Cr₂O₃-TiO₂-CaF₂ Coatings Using Plasma Spray Process Available to Purchase

This paper presents the results of a study on the wear resistance of plasma spray coatings made from Cr₂O₃-TiO₂-CaF₂ powders. The composite powders used were produced by self-propagating high temperature synthesis. They were then applied under various conditions in order to optimize the material system, spray process, and application procedures. Based on the results of microstructural examination and wear testing, the thermally sprayed composite coatings have excellent wear resistance, good adhesion, and are self-lubricating at high temperatures.