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US 9,421,733 B2Granted
Multi-layer ceramic composite porous structure
AssigneeRolls-Royce North American Technologies Inc.
InventorsRichard Christopher Uskert, Ted Joseph Freeman, David John Thomas, Jay Lane
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Abstract
An article of manufacture includes a first ceramic matrix composite (CMC) sheet having a number of flow passages therethrough, and an open-cell foam layer bonded to the first CMC sheet. The open-cell foam layer is an open-cell foam. The article of manufacture includes a second CMC sheet bonded to the open-cell foam layer, the second CMC sheet having a thermal and environmental barrier coating and having a number of flow passages therethrough.
Claims19
An article of manufacture, comprising:
- a first ceramic matrix composite (CMC) sheet having a plurality of flow passages therethrough;
- a permeable structure layer bonded to the first CMC sheet, wherein the permeable structure layer comprises an open-cell foam layer;
- a second CMC sheet bonded to the permeable structure layer;
- another open-cell foam layer bonded to the second CMC sheet;
- and
- a third CMC sheet bonded to the another open-cell foam layer.
3 more elements
A method, comprising:
- providing a multi-layer ceramic matrix composite (CMC) component comprising two opposing CMC sheets and a permeable structure therebetween, wherein the permeable structure is an open-cell foam layer, wherein the two opposing CMC sheets include a first CMC sheet having a plurality of flow passages therethrough, and a second CMC sheet, wherein the permeable structure is bonded to the first CMC sheet and bonded to the second CMC sheet, a third CMC sheet, and another open-cell foam layer disposed between the second CMC sheet and the third CMC sheet, wherein the another open-cell foam layer is bonded to the second CMC sheet and bonded to the third CMC sheet;
- exposing one of the CMC sheets directly to high-temperature turbine engine gases;
- and flowing a coolant fluid through the open-cell foam layers and at least one of the CMC sheets.
A method, comprising:
- forming a first ceramic matrix composite (CMC) sheet, and providing a plurality of flow paths therethrough;
- rigidizing the first CMC sheet into a component shape;
- bonding a shaped, open-cell foam layer to the first CMC sheet;
- forming a second CMC sheet;
- rigidizing the second CMC sheet;
- bonding the second CMC sheet to the foam layer;
- bonding a second shaped, open-cell foam layer to the second CMC sheet;
- forming a third CMC sheet;
- and bonding the third CMC sheet to the second foam layer, thereby forming a component structure;
- and
- curing the component structure.
8 more elements
Dependencies are inferred from the claim text.