Patent ID: 8980434
Filing Date: 2015-03-17
Classification: B32B,C04B,C23C,F01D,F05D,Y02T

Abstract:
1. A coated ceramic-based structure comprising: (a) a substrate comprising a ceramic; and (b) an oxidation-resistant coating comprising a continuous layer of an aluminoborosilicate glass on a surface of the substrate; wherein the oxidation-resistant coating is characterized in that it remains intact on the surface of the substrate when the coated substrate is exposed to a temperature of at least 1200° C. in an oxidizing air environment for a period of at least one hour and reduces the rate at which oxygen diffuses to the surface of the substrate to an extent sufficient to prevent the formation of an oxide scale on the surface of the substrate when the coated substrate is exposed to a temperature of at least 1200° C. in an oxidizing air environment for a period of at least one hour.