Method for aluminizing serpentine cooling passages of jet...

Details Method for aluminizing serpentine cooling passages of jet... Method for aluminizing serpentine cooling passages of jet...

2006-06-21

2010-11-09

Jolley, Kirsten C (Department: 1715)

Coating processes

Heat decomposition of applied coating or base material

Coating decomposed to form metal

C427S230000, C427S232000, C427S234000, C427S235000, C427S238000, C427S239000, C427S240000, C427S349000, C427S376600, C427S376800, C427S380000

Reexamination Certificate

active

07829142

ABSTRACT:
Disclosed herein is a method for aluminiding an internal passage of a metal substrate comprising injecting a slurry composition that comprises a powder comprising aluminum, a binder selected from the group consisting of colloidal silica, an organic resin, and a combination thereof, into the internal passage; applying compressed air to the internal passage to facilitate distribution of the slurry composition throughout the internal passage; and, heat treating the slurry composition under conditions sufficient to remove volatile components from the composition, and to cause diffusion of aluminum into a surface of the internal passage.

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EP Search Report, EP07112484, Nov. 22, 2007.

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