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US 2009/0088038 A1Published application
Multilayered boron nitride/silicon nitride fiber coatings
AssigneeUnited Technologies Corporation
InventorMichael Kmetz
Life of this patent
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Abstract
A composite is described which has particular utility in the formation of components for gas turbine engines. The composite broadly comprises a substrate having a surface and at least one layer of a BN/Si3N4 coating on the substrate surface. The coating preferably is formed by alternative layers of a BN material and a Si3N4 material. The substrate may be a cloth material with fibers, such as SiC fibers, woven therein.
Claims5
1-15. (canceled)
A composite comprising:
- a substrate having a surface;
- and
- at least one layer of a BN/Si3N4 coating on said substrate surface.
Dependencies are inferred from the claim text.