Environmental barrier coating
US11542209B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Feb 7, 2020 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Jun 6, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12611
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An article includes a ceramic-based substrate and a barrier layer on the ceramic-based substrate. The barrier layer includes a matrix phase and gettering particles in the matrix phase. The gettering particles with an aspect ratio greater than one are aligned such that a maximum dimension of the gettering particles extends along an axis that is generally parallel to the substrate. The barrier layer includes a dispersion of diffusive particles in the matrix phase. A composite material and a method of applying a barrier layer to a substrate are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.