Preform for ceramic matrix composite, method of making a ceramic matrix composite and ceramic matrix composite
AssigneeRtx Corporation
InventorBrendan M. Lenz
Life of this patent
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Abstract
Disclosed is a preform for a ceramic matrix composite including direct channels extending from an exterior surface of the preform to an interior space of the preform wherein the direct channels are free of char.
Claims20
A preform for a ceramic matrix composite comprising reinforcing fibers and direct channels extending from an exterior surface of the preform to end at an interior space of the preform wherein the direct channels are free of char and each direct channel is an open space having no variations in direction of more than five degrees;
- wherein a first plurality of the direct channels are perpendicular to a second plurality of the direct channels, and wherein the reinforcing fibers comprise 30 to 50 volume percent of the preform.
A method of making a ceramic matrix composite comprising:
- forming a preform comprising reinforcing fibers having direct channels extending from an exterior surface of the preform to end at an interior space of the preform wherein the direct channels are free of char and each direct channel is an open space having no variations in direction of more than five degrees, wherein the reinforcing fibers comprise 30 to 50 volume percent of the preform;
- and
- infiltrating the preform having direct channels with matrix material;
- wherein a first plurality of the direct channels are perpendicular to a second plurality of the direct channels, and wherein the direct channels include infiltrated matrix material.
A ceramic matrix composite comprising reinforcing fibers and direct matrix channels extending from an exterior surface of the composite to end at an interior space of the composite wherein the direct matrix channels are free of char and each direct matrix channel has no variations in direction of more than five degrees;
- wherein a first plurality of the direct matrix channels are perpendicular to a second plurality of the direct matrix channels, and wherein the direct matrix channels include infiltrated matrix material;
- wherein the reinforcing fibers comprise 30 to 50 volume percent of the composite.
Dependencies are inferred from the claim text.