Invention Grant
- Patent Title: High temperature tolerant ceramic matrix composites and environmental barrier coatings
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Application No.: US14772883Application Date: 2014-03-04
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Publication No.: US10822998B2Publication Date: 2020-11-03
- Inventor: Krishan Lal Luthra , Don M. Lipkin , Julin Wan
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Dority & Manning, P.A.
- International Application: PCT/US2014/020388 WO 20140304
- International Announcement: WO2014/138108 WO 20140912
- Main IPC: C04B35/565
- IPC: C04B35/565 ; F01D25/00 ; C04B41/89 ; C04B41/00 ; F01D5/28 ; C04B41/52

Abstract:
High-temperature machine components, more particularly, articles capable of operating in high-temperature environments, including for example turbines of gas engines, may be formed of a high temperature ceramic matrix composite that includes a ceramic substrate including silicon; an environmental harrier coating system including a silicon containing bond coat; and a diffusion barrier layer of a carbide or a nitride between the substrate of the article and the silicon bond coat of the environmental barrier coating system. The diffusion harrier layer selectively prevents or reduces the diffusion of boron and impurities from the substrate to the bond coat of the environmental barrier coating system.
Public/Granted literature
- US20160017749A1 HIGH TEMPERATURE TOLERANT CERAMIC MATRIX COMPOSITES AND ENVIRONMENTAL BARRIER COATINGS Public/Granted day:2016-01-21
Information query
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