Environmental barrier coatings providing CMAS mitigation capability for ceramic substrate components
US8119247B2 · kind B2 · utility
17Cited by
14References
13Claims
0Family size
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Key dates
| Filing date | Dec 19, 2008 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Nov 4, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31667
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Environmental barrier coatings having CMAS mitigation capability for silicon-containing components. In one embodiment, the barrier coating includes a bond coat layer comprising silicon or silicide, and an outer layer selected from the group consisting of Ln4Al2O9, and Lna4Ga2O9.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.