1994-03-01

Chemical Removal of Ceramic Thermal Barrier and Metallic Bond Coats from Gas Turbine Combustion Components 940053

This paper describes a chemical immersion process capable of removing ceramic thermal barrier coatings, high temperature oxidation resistant coatings, and, nickel-aluminide bond coat materials from gas turbine engine components typically found in commercial and military jet engines. This process was originally developed to remove thermal barrier coatings from JT-8D combustion chambers for commercial aircraft. Since then, the process has been utilized to remove a variety of MCrAlY coatings from commercial and military aircraft engines.

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