Protective coatings for superalloys
AssigneeGeneral Electric Company
InventorsGeorge A. Coffinberry, John F. Ackerman, William R. Stowell
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Abstract
A superalloy component having a substrate article of a superalloy, and a strengthenable coating covering at least a portion of the substrate article. The coating exhibits thermal barrier characteristics and when cured formed a ceramic material. The component may further include a fiber layer between the substrate article and the coating, and the coating may be reinforced with fiber and the ceramic may be imbedded with inorganic particles. The coating is a foam obtained by reacting an admixture of (a) a silane polymer, (b) a silicone-vinyl resin and (c) a catalyst. The article is preferably a turbine blade. The component is useful as a gas turbine element.
Claims13
A coated superalloy component, comprising:
- (a) a substrate article formed of a superalloy;
- and
- (b) a coating covering at least a portion of said substrate article, said coating being strengthenable by heat treatment,
- wherein said coating is a form obtained by reaching an admixture comprising (a) a silane polymer of the formula ##STR7## (b) a silicone-vinyl resin comprising alkene moieties and (c) a (c) a catalyst.
A coated superalloy component, comprising:
- (a) a substrate article formed of a superalloy;
- (b) a coating covering at least a portion of said substrate article, wherein said coating is a form obtained by reacting an admixture comprising:
- a silane polymer of the formula ##STR8## a silicone-vinyl resin comprising alkene moieties;
- and a catalyst;
- and
- (c) a fiber layer between said substrate article and said coating.
Dependencies are inferred from the claim text.