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ARTICLES FOR HIGH TEMPERATURE SERVICE AND METHODS FOR THEIR MANUFACTURE

United States Patent Application

20130130042
A1
View the Complete Application at the US Patent & Trademark Office
An article for use in aggressive environments is presented. In one embodiment, the article comprises a substrate and a self-sealing and substantially hermetic sealing layer comprising an alkaline-earth aluminosilicate disposed over the bondcoat. The substrate may be any high-temperature material, including, for instance, silicon-bearing ceramics and ceramic matrix composites.
Sarrafi-Nour, Reza (Clifton Park, NY), Meschter, Peter Joel (Niskayuna, NY), Johnson, Curtis Alan (Niskayuna, NY), Luthra, Krishan Lal (Niskayuna, NY), Rosenzweig, Larry Steven (Clifton Park, NY)
GENERAL ELECTRIC COMPANY (Schenectady NY)
13/ 744,958
January 18, 2013
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH & DEVELOPMENT [0002] This invention was made with U.S. Government support under contract number DE-FC26-05NT42643 awarded by the Department of Energy. The Government has certain rights in the invention.