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US 12,617,734 B2Granted
Ceramic matrix composite article and method of making the same
AssigneeRtx Corporation
InventorMichael G. McCaffrey
Life of this patent
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Abstract
A method of forming a feature on an article includes applying a powder material stock to a surface of an article, the powder material stock being capable of being transformed into a solid feature by the application of energy; applying energy to a portion of the powder material stock within a footprint of a feature to form the feature within the footprint; and removing excess powder material stock from the surface of the article. A coated article is also disclosed.
Claims14
A method of forming a feature on an article, comprising:
- (a) applying a powder material stock to a surface of an article, the powder material stock being capable of being transformed into a solid feature by application of energy;
- (b) applying energy to a portion of the powder material stock within a footprint of a feature to form the feature within the footprint;
- (c) removing excess powder material stock from the surface of the article;
- (d) applying a second powder material stock to the surface of the article, the second powder material stock being capable of being transformed into a solid coating by application of energy;
- (e) applying energy to a portion of the second powder material stock within a coating layer footprint to form a coating layer over the feature, wherein the coating layer overhangs an outwardly facing surface of the feature and forms a pocket underneath the coating layer and adjacent the feature;
- (f) removing excess of the second powder material stock from the surface of the article and the feature;
- and
- (g) applying an environmental barrier coating over the article including over the feature, the pocket interlocking with the environmental barrier coating to mechanically tack the environmental barrier coating on the article.
5 more elements
Dependencies are inferred from the claim text.