Multilayer protective coating systems for gas turbine engine applications and methods for fabricating the same
US12006269B2 · kind B2 · utility
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Key dates
| Filing date | Aug 25, 2021 |
| Grant date | Jun 11, 2024 |
| Priority date | — |
| Expiry date | Sep 11, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A multilayer protective coating system includes a turbine engine component substrate formed of a ceramic matrix composite material, an environmental barrier coating layer including a rare earth disilicate material deposited directly on the substrate, and a plurality of pairs of alternating layers of the rare earth disilicate material and a rare earth monosilicate material deposited and sintered directly on the environmental barrier coating layer. Each layer of the plurality of pairs of alternating layers is relative less thick as compared with the environmental barrier coating layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.