Coating method
By using chemical vapor deposition technology to form a characteristic thin coating on the turbo ceramic matrix composite substrate, the problems of oxidation and coating peeling of ceramic matrix composite materials in a turbo corrosive environment are solved, and efficient corrosion resistance and adhesion are achieved.
CN119452119APending Publication Date: 2025-02-14SAFRAN CERAMICS SA +2
Patent Information
- Application Number
- CN202380045391.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-06-07
- Filing Date
- 2023-06-06
- Publication Date
- 2025-02-14
Smart Images
Figure CN119452119A_ABST
Abstract
The invention relates to a coating method. The coating method comprises a step of forming a bonding coating layer (200) on the surface of a substrate (100) and a step of forming a barrier coating layer (300) on the bonding coating layer (200). The bond coat (200) is formed by chemical vapor deposition of a precursor comprising silicon at a deposition pressure between 1 and 5 kPa and a deposition temperature between 964 and 1135 DEG C to obtain a bond coat having an average roughness Ra greater than 1 [mu] m.
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Citation Information
Patent Citations
Manufacturing process for an environmental barrier
FR3114588A1
Silicon Bond Coat with Amorphous Structure and Methods of Its Formation
US20200039886A1
Silicon Bond Coat With Columnar Grains and Methods of its Formation
US20200039892A1