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US 12,565,450 B2Granted
Oxidation protection for carbon-carbon composites
AssigneeGoodrich Corporation
InventorAtta Khan
Life of this patent
Estimating the term…
Abstract
A method for forming an oxidation protection system on a composite structure may comprise applying a ceramic layer slurry to the composite structure and heating the composite structure to form a ceramic layer on the composite structure. The ceramic layer slurry may comprise aluminum and silicon carbide powder in a sol. The ceramic layer may comprise alumina, silicon carbide and silicon oxycarbide.
Claims5
An oxidation protection system disposed on an outer surface of a substrate, the oxidation protection system comprising:
- a ceramic layer comprising between 1% and 20% by weight alumina, between 50% and 80% silicon carbide, and between 10% and 30% by weight silicon oxycarbide;
- and
- a sealing layer comprising a sealing glass composition located over the ceramic layer.
An aircraft brake disk, comprising:
- a carbon-carbon composite structure comprising a non-friction surface;
- and
- an oxidation protection system disposed on the non-friction surface, the oxidation protection system including:
- a ceramic layer comprising between 1% and 20% by weight alumina, between 50% and 80% silicon carbide, and between 10% and 30% by weight silicon oxycarbide;
- and
- a sealing layer comprising a sealing glass composition located over the ceramic layer.
3 more elements
Dependencies are inferred from the claim text.