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US 11,976,013 B2Granted
Composite coating layer for ceramic matrix composite substrate
AssigneeROLLS-ROYCE plc
InventorsStephanie Gong, Ngunjoh Lawrence Ndamka, Matthew R. Gold, Li Li, Taylor K. Blair, Sunny Chang, Ann Bolcavage
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Abstract
An article may include a substrate including a ceramic matrix composite (CMC); a composite coating layer including a first coating material that includes a rare-earth disilicate and a second coating material that includes at least one of a rare-earth monosilicate, a CMAS-resistant material, or a high-temperature dislocating material, where the second coating material forms a substantially continuous phase in the composite coating layer.
Claims13
An article comprising:
- a substrate including a ceramic matrix composite (CMC);
- a single composite coating layer formed from a composite feedstock, the composite feedstock comprising:
- a first coating material comprising a rare-earth disilicate;
- and
- a second coating material comprising at least one of a calcium-magnesium-alumino-silicate (CMAS)-resistant material or a high-temperature dislocating material,
- wherein the second coating material forms a substantially continuous phase in the single composite coating layer, and wherein the single composite coating layer comprises splats of the first coating material evenly distributed throughout the substantially continuous phase of the second coating material and substantially fully encapsulated by the second coating material.
3 more elements
A composite feedstock comprising:
- a core comprising a first coating material comprising a rare-earth disilicate;
- and
- an outer layer at least partially encapsulating the core, wherein the outer layer comprises a second coating material comprising at least one of a rare-earth monosilicate, a CMAS-resistant material, or a high-temperature dislocating material, wherein the second coating material at least partially encapsulates respective surfaces of the core.
An article comprising:
- a substrate including a ceramic matrix composite (CMC);
- a single composite coating layer comprising:
- a first coating material comprising a rare-earth disilicate;
- and
- a second coating material comprising at least one of a calcium-magnesium-alumino-silicate (CMAS)-resistant material or a high-temperature dislocating material,
- wherein the second coating material forms a substantially continuous phase in the single composite coating layer, and wherein the single composite coating layer comprises splats of the first coating material evenly distributed throughout the substantially continuous phase of the second coating material and substantially fully encapsulated by the second coating material.
3 more elements
Dependencies are inferred from the claim text.