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Thermal barrier coating resistant to sintering

United States Patent

June 29, 2004
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A device (10) is made, having a ceramic thermal barrier coating layer (16) characterized by a microstructure having gaps (18) with a sintering inhibiting material (22) disposed on the columns (20) within the gaps (18). The sintering resistant material (22) is stable over the range of operating temperatures of the device (10), is not soluble with the underlying ceramic layer (16) and is applied by a process that is not an electron beam physical vapor deposition process.
Subramanian; Ramesh (Oviedo, FL), Seth; Brij B. (Maitland, FL)
Siemens Westinghouse Power Corporation (Orlando, FL)
09/ 640,073
August 17, 2000
GOVERNMENT RIGHTS STATEMENT This invention was conceived under United States Department of Energy Contract DE-AC05-950R22242. The United States Government has certain rights hereunder.