Through thickness reinforcement of SiC/SiC CMC's through...

Details Through thickness reinforcement of SiC/SiC CMC's through... Through thickness reinforcement of SiC/SiC CMC's through...

2005-06-17

2009-06-23

Nguyen, Ninh H (Department: 3745)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Between blade edge and static part

C029S889200, C415S200000, C415S115000, C416S09600A, C416S230000, C416S22900R, C416S24100B

Reexamination Certificate

active

07549840

ABSTRACT:
A method of manufacturing a turbine engine component comprising the steps of providing and laying up a plurality of ceramic plies comprising woven ceramic fiber tows to form a turbine engine component shape, inserting a plurality of tows of oxidizable fugitive fibers into the component shape, such that each fugitive fiber tow passes through a preselected number of ceramic plies, burning off the fugitive fiber tows, the burning producing through-thickness void regions, rigidizing the component shape with a layer of BN and a layer of SiC to form a coated component preform using chemical vapor infiltration, and partially densifying the coated component preform using carbon-containing slurry and filling the through thickness void regions, and further densifying the coated component preform with at least silicon to form a ceramic matrix composite turbine engine component with in-situ ceramic matrix plugs formed where the through-thickness void regions were located.

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