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US 2024/0417336 A1Published application
Recession resistant intermediate layer for cmc vane
AssigneeROLLS-ROYCE plc
InventorsDavid J. Thomas, Thomas Nixon, Michael Whittle, Jeffrey Crutchfield
Life of this patent
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Abstract
A ceramic matrix composite (CMC) component is provided that includes: a CMC body in which an environmental protection layer is completely embedded within a CMC material of the CMC body, the environmental protection layer comprising a ceramic that has a higher impact and/or environmental resistance than the CMC material. Methods for manufacturing the CMC component are also provided.
Claims11
A ceramic matrix composite (CMC) component comprising:
- a CMC body in which an environmental protection layer is completely embedded within a CMC material of the CMC body, the environmental protection layer comprising a ceramic that has a higher impact and/or environmental resistance than the CMC material.
A ceramic matrix composite (CMC) component comprising:
- a CMC body;
- an environmental protection layer completely embedded within a CMC material of the CMC body, the environmental protection layer comprising a ceramic that has a higher impact and/or environmental resistance than the CMC material;
- and
- an isolation barrier layer positioned on at least a portion of the environmental protection layer.
1 more element
A ceramic matrix composite (CMC) component comprising:
- a CMC body;
- an environmental protection layer completely embedded within a CMC material of the CMC body, the environmental protection layer comprising a ceramic that has a higher impact and/or environmental resistance than the CMC material, wherein the environmental protection layer comprises a rare earth silicate selected from the group consisting of:
- ytterbium monosilicate (YbSiO5), ytterbium disilicate (YbSi2O7), yttrium monosilicate (Y2SiO5) and yttrium disilicate (Y2Si2O7;
- and
- an isolation barrier layer positioned on at least a portion of the environmental protection layer, wherein the wherein the isolation barrier comprises SiC or Si3N4.
2 more elements
Dependencies are inferred from the claim text.