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US 2017/0015595 A1Published application
Ceramic matrix composite structures with controlled microstructures fabricated using chemical vapor infiltration (cvi)
AssigneeGeneral Electric Company
InventorsJared Hogg WEAVER, Gregory Scot CORMAN, Krishan Lal LUTHRA
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Abstract
According to a method set forth herein a plurality of preform plies having first and second preform plies can be associated together to define a preform. The preform can be subject to chemical vapor infiltration (CVI) processing to define a ceramic matrix composite (CMC) structure.
Claims34
A method comprising:
- associating a plurality of preform plies to define a preform, wherein a first preform ply and a second preform ply of the plurality of preform plies have different average pore sizes;
- and
- subjecting the preform to chemical vapor infiltration (CVI) to define a densified ceramic matrix composite (CMC) structure.
A structure comprising:
- a plurality of preform plies associated together to define a preform;
- wherein a first preform ply and a second preform ply of the plurality of preform plies have different average pore sizes.
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A method comprising:
- associating a plurality of preform plies to define a preform, wherein the plurality of preform plies includes a first preform ply and a second preform ply, and wherein the method includes fabricating one or more preform ply of the plurality of preform plies using a pore former;
- and
- subjecting the preform to chemical vapor infiltration (CVI) to define a densified ceramic matrix composite (CMC) structure.
A method comprising:
- associating a plurality of preform plies to define a preform, wherein the plurality of preform plies includes a first preform ply and a second preform ply, and wherein the method includes fabricating one or more preform ply of the plurality of preform plies using a filler;
- and
- subjecting the preform to chemical vapor infiltration (CVI) to define a densified ceramic matrix composite (CMC) structure.
Dependencies are inferred from the claim text.