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US 11,046,619 B2Granted
High temperature oxidation protection for composites
AssigneeGoodrich Corporation
InventorSteven A. Poteet
Life of this patent
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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.
Claims13
A method for forming an oxidation protection system on a composite structure, comprising:
- forming a first slurry by combining a first pre-slurry composition with a first carrier fluid, wherein the first pre-slurry composition comprises a first phosphate glass composition;
- applying the first slurry to the composite structure;
- heating the composite structure to a temperature sufficient to form a base layer on the composite structure;
- forming a second slurry by combining a second pre-slurry composition with a second carrier fluid, wherein the second pre-slurry composition comprises a second phosphate glass composition and a strengthening compound comprising boron nitride;
- applying the second slurry to the composite structure;
- and
- heating the composite structure to a temperature sufficient to form a sealing layer on the composite structure.
4 more elements
Dependencies are inferred from the claim text.