SILICA-FORMING ARTICLES HAVING ENGINEERED SURFACES TO ENHANCE RESISTANCE TO CREEP SLIDING UNDER HIGH-TEMPERATURE LOADING

*** PATENT GRANTED ***

Publication Number:	20150118443
Issued Patent Number:	9,561,986
Kind Code:	A1
Official Filing:	View the Complete Application at the US Patent & Trademark Office
Abstract:	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.
Inventors:	Lipkin, Don Mark (Schenectady, NY), Johnson, Curtis Alan (Niskayuna, NY), Meschter, Peter Joel (Franklin, TN), Sundaram, Sairam (Niskayuna, NY), Wan, Julin (Rexford, NY)
Assignee:	GENERAL ELECTRIC COMPANY (Schenectady NY)
Application Number:	14/ 068,693
Filed:	October 31, 2013
Government Interests:	GOVERNMENT INTEREST [0001] 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.