Thermal barrier coating system for superalloy components

Details Thermal barrier coating system for superalloy components Thermal barrier coating system for superalloy components

1984-04-25

1996-05-07

Lovering, Richard D.

Stock material or miscellaneous articles

All metal or with adjacent metals

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

428610, 4273837, 427554, 427566, B05D 302, B05D 306, B21D 3900

Patent

active

055144829

ABSTRACT:
An improvement in a thermal barrier coating for superalloy turbine engine components subjected to high operating temperatures, such as turbine airfoils, e.g., vanes and blades, is disclosed which eliminates the expensive MCrAlY oxidation resistant bond coating underlayer for a columnar grained ceramic thermal barrier coating. In accordance with my present invention, a relatively low cost thermal barrier coating system for superalloy turbine components is provided which utilizes a diffusion aluminide coating layer as the oxidation resistant bonding surface for the columnar grained ceramic insulating coating.

REFERENCES:
patent: 3811959 (1971-05-01), Weinstein et al.
patent: 4005989 (1977-02-01), Preston
patent: 4122240 (1978-10-01), Banas et al.
patent: 4321311 (1982-03-01), Strangman
patent: 4399199 (1983-08-01), McGill et al.
patent: 4447503 (1984-05-01), Dardi et al.
patent: 5238752 (1993-08-01), Duderstadt et al.

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