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US 10,294,806 B2Granted
Multiple coating configuration
AssigneeUnited Technologies Corporation
InventorsSarah Riley, Jeffrey R. Levine, Mark A. Boeke
Life of this patent
Estimating the term…
Abstract
An article includes a body that has a coating thereon. The coating has a first portion disposed on a first section of the body and a second portion disposed on a second, different section of the body. The first portion has a first microstructure and the second portion has a second, different microstructure.
Claims16
An article comprising:
- a body including a platform, first and second airfoils, and a coating on the platform and the first and second airfoils, the coating being mono-layered on the platform of the body and being mono- or multi-layered on the first and second airfoils of the body, the coating on the platform having a first microstructure that is a random grain structure and the coating on the first and second airfoils having a second, different microstructure that is a columnar microstructure.
A method of coating an article, the method comprising:
- applying a coating to a body of an article that has a platform and first and second airfoils, including forming the coating as a mono-layer that has a random grain structure on the platform of the body using a first coating technique and forming the coating as a mono- or multi-layer that has a columnar grain structure on the first and second airfoils of the body using a second, different coating technique.
A gas turbine engine comprising:
- an article including a body having a platform, first and second airfoils, and a coating on the platform and the first and second airfoils, the coating being mono-layered on the platform of the body and being mono- or multi-layered on the first and second airfoils of the body, the coating on the platform having a first microstructure that is a random grain structure and the coating on the first and second airfoils having a second, different microstructure that is a columnar grain structure.
Dependencies are inferred from the claim text.