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Silica-forming articles having engineered surfaces to enhance resistance to creep sliding under high-temperature loading

United States Patent

9,561,986
February 7, 2017
View the Complete Patent at the US Patent & Trademark Office
An article includes a silicon-containing region; at least one outer layer overlying a surface of the silicon-containing region; and a constituent layer on the surface of the silicon-containing region and between and contacting the silicon-containing region and the at least one outer layer, the constituent layer being formed by constituents of the silicon-containing region and being susceptible to creep within an operating environment of the article, wherein the silicon-containing region defines a plurality of channels and a plurality of ridges that interlock within the plurality of channels are formed in the silicon-containing region to physically interlock the at least one outer layer with the silicon-containing region through the constituent layer.
Lipkin; Don Mark (Schenectady, NY), Johnson; Curtis Alan (Niskayuna, NY), Meschter; Peter Joel (Franklin, TN), Sundaram; Sairam (Niskayuna, NY), Wan; Julin (Rexford, NY)
General Electric Company (Niskayuna, NY)
14/ 068,693
October 31, 2013
GOVERNMENT INTEREST The present technology was developed with Government support under Contract No. DE-FC26-05NT42643 awarded by the Department of Energy. The Government may have certain rights in the claimed inventions.