Patent ID: 7700167
Filing Date: 2010-04-20
Classification: C23C,F01D,F04D,F05D,Y02T

Abstract:
1. A method of forming a coating on a stator vane, the method comprising the steps of: placing the stator vane in a vacuum chamber, while maintaining the stator vane at a temperature substantially equal to or below a predetermined temperature, the stator vane comprising a polymer matrix fiber composite having a melting point, glass transition temperature, or maximum exposure temperature that is less than about 150° C., and the predetermined temperature being less than the melting point, glass transition temperature, or maximum exposure temperature; and forming a coating over the stator vane, while the stator vane temperature is maintained substantially equal to or below the predetermined temperature, the coating comprising a material that is more erosion-resistant than the polymer matrix fiber composite, wherein the material is selected from a group of constituents consisting of titanium, chromium, vanadium, and zirconium, and nitrides, carbides, mixed carbonitrides, oxides, oxynitrides, oxycarbides, and oxycarbonitrides thereof and the material has a melting point that is higher than 150° C.