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US 10,851,021 B2Granted
Article having coating including compound of aluminum, boron and nitrogen
AssigneeRaytheon Technologies Corporation
InventorWayde R. Schmidt
Life of this patent
Estimating the term…
Abstract
An article includes a monolithic substrate and a coating on the monolithic substrate. The monolithic substrate is selected from graphite, silicon carbide, silicon carbide nitride, silicon nitride carbide, and silicon nitride. The coating has a free, exposed surface and includes a compound of aluminum (Al), boron (B) and nitrogen (N) in a continuous chemically bonded network having Al—N bonds and B—N bonds. The compound includes an atom of nitrogen covalently bonded to an atom of boron and an atom of aluminum, and the compound has a composition BxAl(1-x)N, where x is 0.001 to 0.999.
Claims12
An article comprising:
- a monolithic substrate selected from the group consisting of graphite, silicon carbide, silicon carbide nitride, silicon nitride carbide, and silicon nitride;
- and
- a coating on the monolithic substrate, the coating having a free, exposed surface and including a compound of aluminum (Al), boron (B) and nitrogen (N) in a continuous chemically bonded network having Al—N bonds and B—N bonds, wherein the compound includes an atom of nitrogen covalently bonded to an atom of boron and an atom of aluminum, and the compound has a composition BxAl(1-x)N, where x is 0.001 to 0.999.
Dependencies are inferred from the claim text.