Method for coating a ceramic matrix composite part with an environmental barrier
US11814325B2 · kind B2 · utility
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Key dates
| Filing date | Feb 25, 2021 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Feb 25, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for coating a ceramic matrix composite part with an environmental barrier, the method including a) applying, to a surface of the part, a coating composition including a first powder of a rare earth silicate and a second powder including boron, the coating composition having a ratio R=[mass of the second powder]/[mass of the first powder] of between 0.1% and 5%, and b) sintering the first and second powders to obtain the environmental barrier on the part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.