High temperature oxidation protection for composites
AssigneeGoodrich Corporation
InventorsSteven A. Poteet, Katherine Urena Pimentel, Philip Sheehan, John Weaver
Life of this patent
Estimating the term…
Abstract
A method for forming an oxidation protection system on a composite structure are provided. The method includes applying a composite slurry to the composite structure, wherein the composite slurry comprises boron carbide, silicon carbide, borosilicate glass, an oxygen reactant compound including a silica forming component, and a carrier fluid and heating the composite structure to a temperature sufficient to form a boron-silicon-glass-oxygen reactant layer on the composite structure.
Claims12
A method for forming an oxidation protection system on a composite structure, comprising:
- applying a composite slurry to the composite structure, wherein the composite slurry comprises boron carbide, silicon carbide, borosilicate glass, an oxygen reactant compound including a silica forming component, and a carrier fluid, and wherein the oxygen reactant compound is between 1.0% and 10.0% of a dry weight of the composite slurry, the composite slurry comprises from 10% to 40% by weight the boron carbide, the oxygen reactant compound comprises particles having an average particle size of between 20 nm and 20 μm, the boron carbide comprises a boron compound powder comprising particles having an average particle size between 100 nm and 100 μm, and the silicon carbide comprises a silicon carbide powder comprising particles having an average particle size of between 500 nm and 20 μm, and the composite slurry is substantially free of phosphate;
- and
- heating the composite structure to a temperature sufficient to form a boron-silicon-glass-oxygen reactant layer on the composite structure.
Dependencies are inferred from the claim text.