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Method of Repairing a Thermal Barrier Coating

Abstract: 

A method of repairing a damaged area of a thermal barrier coating on a component which is subjected to a hostile thermal environment, which comprises cleaning the damaged area, applying a partially stabilized zirconium sol-gel to the area, and pyrolizing the sol-gel to form a TBC repair layer.

Patent Number: 
6,235,352
Date Of Issue: 
05/22/2001
Inventors: 

Gerald R. Leverant;Narayana S. Cheruvu;Partha P. Paul;Stuart T. Schwab