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US 2026/0296980 A1Published application
Preform tapered hole press for improved cvi-cmc microstructure
AssigneeRtx Corporation
InventorsEvan B. Callaway, Brendan Lenz
Life of this patent
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Abstract
A method of preparing a fibrous preform for use in a ceramic matrix composite comprises arranging the preform from a woven ceramic material, the preform comprising a pair of opposing outer surfaces and a midplane disposed between the pair of opposing outer surfaces, and perforating the preform with a spiked array to form a perforated preform. The perforated preform comprises a plurality of hourglass-shaped voids extending through a thickness of the preform.
Claims17
A method of preparing a fibrous preform for use in a ceramic matrix composite, the method comprising:
- arranging the preform from a woven ceramic material, the preform comprising a pair of opposing outer surfaces and a midplane disposed between the pair of opposing outer surfaces;
- and
- perforating the preform with a spiked array to form a perforated preform, the perforated preform comprising:
- a plurality of hourglass-shaped voids extending through a thickness of the preform.
1 more element
1010 The method of claim 9, and further comprising:
- after perforating the preform, applying at least one of heat or pressure to dry the preform.
Dependencies are inferred from the claim text.