Airfoil having environmental barrier topcoats that vary in composition by location
US12044146B2 · kind B2 · utility
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2References
17Claims
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Assignee
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Key dates
| Filing date | Mar 20, 2023 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Mar 20, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An airfoil includes an airfoil wall that defines a leading end, a trailing end, and suction and pressure sides that join the leading end and the trailing end. The airfoil wall is formed of a silicon-containing ceramic. A first environmental barrier topcoat is disposed on the suction side of the airfoil wall, and a second, different environmental barrier topcoat is disposed on the pressure side of the airfoil wall. The first topcoat is vaporization-resistant and the second topcoat is resistant to calcium-magnesium-aluminosilicate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.