COATING METHOD AND COATED ARTICLE

摘要

A coating method and a coated article are disclosed. Forming a coating includes providing a substrate 202 having a substrate surface 204, forming on the substrate surface at least one bond coating layer 208 defining a bond coating surface 210, and forming on the bond coating surface at least one oxide coating layer defining an oxide coating surface 214. A coated article includes a substrate having the coating formed thereupon. The oxide coating layer is more resistive to increasing the oxide coating surface roughness (R a ) than either the bond coating layer is resistive to increasing the bond coating surface roughness (R a ) or the substrate is resistive to increasing the substrate surface roughness (R a ).