Coating processes – Coating by vapor – gas – or smoke – Mixture of vapors or gases utilized
Reexamination Certificate
2006-10-12
2009-08-04
Chen, Bret (Department: 1792)
Coating processes
Coating by vapor, gas, or smoke
Mixture of vapors or gases utilized
C427S255340, C427S255700, C427S376600, C427S596000
Reexamination Certificate
active
07569251
ABSTRACT:
A method of forming a gas turbine part includes forming a bonding underlayer on a superalloy metal substrate, the underlayer including an intermetallic compound of aluminum, nickel, and platinum, and forming a ceramic outer layer 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 whichz,y, andxare such that 0.05≦z≦0.40, 0.30≦y≦0.06, and 0.15≦x≦0.40.
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Carlin Maxime
Nicholls John
Saint-Ramond Bertrand
Silva Manuel
Chen Bret
Rothwell, Figg Ernst & Manbeck, PC
Snecma
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