Invention Grant
- Patent Title: CMCs with luminescence environmental barrier coatings
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Application No.: US16887294Application Date: 2020-05-29
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Publication No.: US11326469B2Publication Date: 2022-05-10
- Inventor: Li Li , Jun Shi
- Applicant: Rolls-Royce Corporation
- Applicant Address: US IN Indianapolis
- Assignee: Rolls-Royce Corporation
- Current Assignee: Rolls-Royce Corporation
- Current Assignee Address: US IN Indianapolis
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: F01D21/00
- IPC: F01D21/00 ; F01D21/14 ; F01D25/00 ; F01D5/28 ; G01N21/64 ; F01D11/12 ; G01B11/06

Abstract:
An article includes a substrate defining a surface, a bond coat on the surface of the substrate, a coating layer on the bond coat, and a wear indicator. The coating layer includes at least one of an environmental barrier coating (EBC) or an abradable coating. The wear indicator disposed in a first region of the coating layer and includes at least one chromophore dopant and a material of the EBC or the abradable coating. The wear indicator is configured to indicate wear of the coating layer.
Public/Granted literature
- US20210372293A1 CMCS WITH LUMINESCENCE ENVIRONMENTAL BARRIER COATINGS Public/Granted day:2021-12-02
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