Protection and enhancement of thermal barrier coating integrity by lithography
AssigneeGeneral Electric Company
InventorsLacey Lynn Schwab, Kathleen Blanche Morey
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Abstract
A method for protecting a coating on a surface of a component is provided. The method includes a coating step that coats at least a portion of the component with a ceramic slurry. A projecting step projects a pattern of light onto the component with a lithographic process to expose and solidify a ceramic layer. A removing step removes unexposed portions of the ceramic slurry from the component. The ceramic layer comprises multiple stress raising elements or multiple anchoring elements.
Claims16
A method for protecting a coating on a surface of a component, the method comprising the steps of:
- coating at least a portion of the component with a ceramic slurry;
- projecting a pattern of light onto the component with a lithographic process to expose and solidify a ceramic layer;
- removing unexposed portions of the ceramic slurry from the component;
- and
- wherein the ceramic layer includes multiple stress raising elements or multiple anchoring elements, further including:
- repeating the coating, the projecting and the removing steps until a desired number of ceramic layers is obtained, and wherein the density of the multiple stress raising elements or multiple anchoring elements varies from one ceramic layer of the desired number of ceramic layers to another ceramic layer of the desired number of ceramic layers.
A method for protecting a coating on a surface of a component, the component formed of multiple layers with one of the layers being a bond coating, the method comprising the steps of:
- coating the bond coating with a ceramic slurry;
- projecting a pattern of light onto the component with a lithographic process to expose and solidify a ceramic layer;
- removing unexposed portions of the ceramic slurry from the component;
- and
- wherein the ceramic layer comprises multiple stress raising elements or multiple anchoring elements, further including:
- repeating the coating, the projecting and the removing steps until a desired number of ceramic layers is obtained, and wherein the density of the multiple stress raising elements or multiple anchoring elements varies from one ceramic layer of the desired number of ceramic layers to another ceramic layer of the desired number of ceramic layers.
Dependencies are inferred from the claim text.