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

Patent ·
OSTI ID:1343305
; ; ; ;

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.

Research Organization:
GE Global Research, Niskayuna, New York (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42643
Assignee:
General Electric Company
Patent Number(s):
9,561,986
Application Number:
14/068,693
OSTI ID:
1343305
Resource Relation:
Patent File Date: 2013 Oct 31
Country of Publication:
United States
Language:
English

References (17)

Oxidation resistance coating system for refractory metals patent March 2001
Silicon based substrate with yttrium silicate environmental/thermal barrier layer patent October 2001
Ceramic with preferential oxygen reactive layer patent October 2001
Roughened bond coat and method for producing using a slurry patent March 2002
Silicon based substrate with environmental/ thermal barrier layer patent June 2002
Roughened bond coats for a thermal barrier coating system and method for producing patent September 2002
Thermally-stabilized thermal barrier coating patent April 2003
Method of making a ceramic with preferential oxygen reactive layer patent October 2003
Recession resistant coated ceramic part patent January 2004
Hybrid high temperature articles and method of making patent April 2004
Environmental barrier coating for silicon based substrates such as silicon nitride patent June 2005
Bond layer for silicon containing substrate patent June 2006
Bi-layer HVOF coating with controlled porosity for use in thermal barrier coatings patent December 2006
Subsurface inclusion of fugitive objects and methodology for strengthening a surface bond in a hybrid ceramic matrix composite structure patent April 2010
Bond coating and thermal barrier compositions, processes for applying both, and their coated articles patent July 2010
Barium-doped bond coat for thermal barrier coatings patent April 2011
Hybrid intermetallic Ru/Pt-modified bond coatings for thermal barrier systems journal November 2007

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