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Thermal barrier coatings for turbine components

United States Patent

April 2, 2002
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A turbine component, such as a turbine blade having a metal substrate (22) is coated with a metal MCrAlY alloy layer (24) and then a thermal barrier layer (20) selected from LaAlO.sub.3, NdAlO.sub.3, La.sub.2 Hf.sub.2 O.sub.7, Dy.sub.3 Al.sub.5 O.sub.12, HO.sub.3 Al.sub.3 O.sub.12, ErAlO.sub.3, GdAlO.sub.3, Yb.sub.2 Ti.sub.2 O.sub.7, LaYbO.sub.3, Gd.sub.2 Hf.sub.2 O.sub.7 or Y.sub.3 Al.sub.5 O.sub.12.
Subramanian; Ramesh (Oviedo, FL), Sabol; Stephen M. (Orlando, FL), Goedjen; John G. (Oviedo, FL), Sloan; Kelly M. (Bethesda, MD), Vance; Steven J. (Orlando, FL)
Siemens Westinghouse Power Corporation (Orlando, FL)
09/ 405,498
September 24, 1999
GOVERNMENT CONTRACT The Government of the United States of America has rights in this invention pursuant to Contract DE-AC05-950R22242, awarded by the United States Department of Energy.