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US 2021/0276924 A1Published application
High temperature oxidation protection for composites
AssigneeGoodrich Corporation
InventorSteven A. Poteet
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Abstract
An oxidation protection system disposed on a substrate is provided, which may comprise a base layer comprising a first pre-slurry composition comprising a first phosphate glass composition, and/or a sealing layer comprising a second pre-slurry composition comprising a second phosphate glass composition and a strengthening compound comprising boron nitride, a metal oxide, and/or silicon carbide.
Claims7
An oxidation protection system disposed on an outer surface of a substrate, comprising:
- a base layer comprising a first pre-slurry composition comprising a first phosphate glass composition;
- and
- a sealing layer comprising a second pre-slurry composition comprising a second phosphate glass composition and a strengthening compound comprising boron nitride, wherein the sealing layer is disposed on the base layer.
(canceled)
An aircraft brake disk, comprising:
- a carbon-carbon composite structure comprising a non-wear surface;
- and
- an oxidation protection system disposed on the non-wear surface, the oxidation protection system comprising:
- a base layer comprising a first pre-slurry composition disposed on the non-wear surface, wherein the first pre-slurry composition comprises a first phosphate glass composition;
- and
- a sealing layer comprising a second pre-slurry composition comprising a second phosphate glass composition and a strengthening compound comprising boron nitride disposed on the base layer, wherein the sealing layer comprises between 5 and 15 percent weight boron nitride.
3 more elements
Dependencies are inferred from the claim text.