Gas turbine part provided with a protective coating

Details Gas turbine part provided with a protective coating Gas turbine part provided with a protective coating

2007-12-25

2007-12-25

Lavilla, Michael E. (Department: 1775)

Stock material or miscellaneous articles

All metal or with adjacent metals

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

C428S334000, C428S633000, C428S650000, C428S652000, C428S670000, C428S678000, C428S680000, C416S24100B

Reexamination Certificate

active

10974973

ABSTRACT:
A gas turbine part comprises a superalloy metal substrate, a bonding underlayer formed on the substrate and comprising an intermetallic compound of aluminum, nickel, and platinum, and a ceramic outer layer anchored on the alumina film formed on the bonding underlayer. The bonding underlayer essentially comprises an Ni—Pt—Al ternary system constituted by an aluminum-enriched α-NiPt type structure, in particular an Ni—Pt—Al ternary system having a composition NizPtyAlxin which z, y, and x are such that 0.05≦z≦0.40, 0.30≦y≦0.60, and 0.15≦x≦0.40.

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patent: 2002/0037220 (2002-03-01), Saint Ramond et al.
patent: 2004/0229075 (2004-11-01), Gleeson et al.

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