Textured subsurface coating segmentation
AssigneesROLLS-ROYCE plc, Rolls-Royce North American Technologies Inc.
InventorsScott Nelson, Gregory John Kenneth Harrington, Matthew R. Gold, Li Li
Life of this patent
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Abstract
The disclosure describes an article and a method of making the same that includes a substrate defining an outer surface, a bond coat on the outer surface of the substrate, the bond coat defining a textured surface having a plurality of cells, each cell having a geometry and a depth, where the depth of a respective cell is different than the depth of at least one adjacent cell, and a coating formed on the textured surface of the bond coat.
Claims20
An article comprising:
- a substrate defining an outer surface;
- a bond coat on the outer surface of the substrate, wherein the bond coat defines a textured surface having a plurality of cells, each cell having a geometry in a major plane of the bond coat and a depth, wherein the depth of a respective cell is different than the depth of at least one adjacent cell;
- and
- a coating on the textured surface of the bond coat.
A gas turbine engine component, comprising:
- a ceramic composite matrix (CMC) substrate defining an outer surface;
- a silicon-based bond coat on the outer surface of the substrate, wherein the silicon-based bond coat defines a textured surface having a plurality of cells, each cell having a geometry in a major plane of the silicon-based bond coat and a depth, wherein the depth of a respective cell is different than the depth of at least one adjacent cell;
- and
- an environmental barrier coating (EBC) formed on the textured surface of the silicon-based bond coat.
A method for forming an article, the method comprising:
- forming a bond coat on an outer surface of a substrate;
- texturing the bond coat by forming a plurality of cells in the bond coat, each cell having a geometry in a plane of the bond coat and a depth, wherein the depth of a respective cell is different than the depth of at least one adjacent cell;
- and
- forming a coating on the textured surface of the bond coat.
Dependencies are inferred from the claim text.