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US 2024/0308927 A1Published application
Three-dimensional weave with sacrificial z-fibers for improved ceramic matrix composite microstructure
OwnerBrendan Lenz, Olivier H. Sudreinventors
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Abstract
A method of forming a ceramic matrix composite includes three-dimensionally weaving a fibrous preform, the preform including a plurality of warp tows, a plurality of weft tows, and a plurality of z-fibers passing orthogonally between the plurality of warp and the plurality of weft tows. The method further includes debulking the preform, decomposing the plurality of z-fibers to form a respective plurality of z-channels in the preform, and densifying the preform with a ceramic matrix.
Claims20
A method of forming a ceramic matrix composite, the method comprising:
- three-dimensionally weaving a fibrous preform, the preform comprising:
- a plurality of warp tows;
- a plurality of weft tows;
- and
- a plurality of z-fibers passing orthogonally between the plurality of warp and the plurality of weft tows;
- debulking the preform;
- decomposing the plurality of z-fibers to form a respective plurality of z-channels in the preform;
- and
- densifying the preform with a ceramic matrix.
6 more elements
A method of forming a ceramic matrix composite, the method comprising:
- three-dimensionally weaving a fibrous preform by:
- laying a plurality of warp tows;
- laying a plurality of weft tows;
- and
- weaving a plurality of z-fibers orthogonally between the plurality of warp tows and the plurality of weft tows;
- subsequently, debulking the preform;
- subsequently, decomposing the plurality of z-fibers to form a respective plurality of z-channels in the preform;
- and
- subsequently, depositing an interface coating on the preform.
6 more elements
Dependencies are inferred from the claim text.