Skip to Content
Find More Like This
Return to Search

Aluminosilicate-Based Oxide Composite Coating and Bond Coat for Silicon-Based Ceramic Substrates

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
An article is disclosed in one embodiment of the invention as including a silicon-based ceramic substrate and a top coat. A bond coat is provided between the silicon-based ceramic substrate and the top coat. The bond coat is derived from a mixture containing preceramic polymer precursors, such as polycarbosilanes, polycarbosilazanes, or other silicocarbon polymers and pyrolyzed preceramic polymer precursors. A filler material may also be included in the mixture to modify the coefficient of thermal expansion (CTE) of the bond coat to more closely match the CTE of the silicon-based ceramic substrate, top coat, or both.
Lewinsohn, Charles (Salt Lake City, UT), Zhao, Qiang (Natick, MA), Nair, Balakrishnan G. (Sandy, UT)
11/ 626,804
January 24, 2007
GOVERNMENT RIGHTS [0002] This invention was made in part with government support under Grant No.: DE-AC05-00OR22725 awarded by the United States Department of Energy. The Government has certain rights in the invention.