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Thermal barrier coating

United States Patent

May 15, 2001
View the Complete Patent at the US Patent & Trademark Office
A thermal barrier coating for hot gas path components of a combustion turbine based on a zirconia-scandia system. A layer of zirconium scandate having the hexagonal Zr.sub.3 Sc.sub.4 O.sub.12 structure is formed directly on a superalloy substrate or on a bond coat formed on the substrate.
Bowker; Jeffrey Charles (Gibsonia, PA), Sabol; Stephen M. (Orlando, FL), Goedjen; John G. (Oviedo, FL)
Siemens Westinghouse Power Corporation (Orlando, FL)
09/ 304,403
May 4, 1999
This invention was made with United States Government support under contract number DE-FC2195MC32267 awarded by the Department of Energy. The Government has certain rights in this invention.