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THERMAL BARRIER COATINGS

United States Patent Application

20170362692
A1
View the Complete Application at the US Patent & Trademark Office
High temperature stable thermal barrier coatings useful for substrates that form component parts of engines such as a component from a gas turbine engine exposed to high temperatures are provided. The thermal barrier coatings include a multiphase composite and/or a multilayer coating comprised of two or more phases with at least one phase providing a low thermal conductivity and at least one phase providing mechanical and erosion durability. Such low thermal conductivity phase can include a rare earth zirconate and such mechanical durability phase can include a rare earth a rare earth aluminate. The different phases are thermochemically compatible even at high temperatures above about 1200.degree. C.
WOLFE, Douglas E. (University Park, PA), SCHMITT, Michael P. (University Park, PA)
15/ 624,396
June 15, 2017
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] This invention was made with government support under Grant No. DE-SC0004356, awarded by the Department of Energy. The Government has certain rights in the invention.