Component protected by an environmental barrier
US11465943B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Oct 3, 2018 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Oct 26, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/6033
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A component includes a substrate at least a portion of which adjacent to a surface of the substrate is made of a material including silicon; a bond coat located on the surface of the substrate and including silicon, an environmental barrier which includes an outer layer of ceramic material covering the bond coat, wherein the environmental barrier further includes a self-healing inner layer located between the bond coat and the outer layer, the inner layer including a matrix in which silico-forming particles are dispersed, these particles being capable of generating a matrix crack healing phase in the presence of oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.