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Method for improving the oxidation-resistance of metal substrates coated with thermal barrier coatings

United States Patent

April 16, 2002
View the Complete Patent at the US Patent & Trademark Office
A method for providing a protective coating on a metal-based substrate is disclosed. The method involves the application of an aluminum-rich mixture to the substrate to form a discontinuous layer of aluminum-rich particles, followed by the application of a second coating over the discontinuous layer of aluminum-rich particles. Aluminum diffuses from the aluminum-rich layer into the substrate, and into any bond coat layer which is subsequently applied. Related articles are also described.
Thompson; Anthony Mark (Niskayuna, NY), Gray; Dennis Michael (Delanson, NY), Jackson; Melvin Robert (Niskayuna, NY)
General Electric Company (Schenectady, NY)
09/ 407,496
September 28, 1999
This invention was made with government support under Contract No. DEFC2195MC31176 awarded by the Department of Energy (DoE). The government may have certain rights to the invention.