Thermal barrier coating system with hardenable bond coat

Details Thermal barrier coating system with hardenable bond coat Thermal barrier coating system with hardenable bond coat

1990-05-07

1996-03-12

Walsh, Donald P.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428632, 148240, 148514, C03C 2702

Patent

active

054984840

ABSTRACT:
A thermal barrier coating system for high temperature nickel-based and cobalt-based superalloys includes a hardenable metallic coating on the substrate and a ceramic topcoat. The metallic coating is preferably a gamma/gamma prime hardenable nickel-based superalloy, and the ceramic topcoat is preferably zirconium oxide having from about 6 to about 20 percent yttrium oxide or from about 15 to about 40 percent cerium oxide. Optionally, there may be provided between the hardenable metallic layer and the ceramic topcoat an intermetallic coating such as a nickel aluminide.

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