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US 12,344,564 B2Granted
Oxidation protection with improved water resistance for composites
AssigneeGoodrich Corporation
InventorsJun Nable, Steven A. Poteet, Xia Tang, James T. Beals
Life of this patent
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Abstract
Systems and methods for forming an oxidation protection system on a composite structure are provided. In various embodiments, the oxidation protection system comprises a boron-glass layer formed on the composite substrate and a silicon-glass layer formed over the boron-glass layer. Each of the boron-glass layer and the silicon-glass layer includes a glass former.
Claims9
An oxidation protection system disposed on an outer surface of a substrate, the oxidation protection system, comprising:
- a boron-glass layer disposed over the outer surface, the boron-glass layer comprising a boron compound, a first glass compound, and a first glass former, wherein the boron compound comprises a mixture of boron carbide powder and boron nitride powder, the boron nitride powder being a greater weight percentage of the boron compound than the boron carbide powder;
- and
- a silicon-glass layer disposed on the boron-glass layer, the silicon-glass layer comprising a silicon compound, a second glass compound, and a second glass former.
Dependencies are inferred from the claim text.