Clearance control through a Ni-graphite/NiCr-base alloy powder m

Details Clearance control through a Ni-graphite/NiCr-base alloy powder m Clearance control through a Ni-graphite/NiCr-base alloy powder m

1975-12-12

1977-08-02

Hunt, Brooks H.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

75201, 75208R, 277 96A, 418178, 418179, 428564, B22F 300

Patent

active

040392961

ABSTRACT:
An improved abradable coating particularly useful to control clearances between relatively moving members in a sealing relationship includes a base portion and an abradable coating portion which is the fusion and interaction product of a mechanical mixture of a plurality of powdered materials comprising a nickel-graphite powder and a nickel-chromium-base alloy powder. One method for making such a seal member includes applying a strippable bond coat of predominantly nickel between a base portion of the member and a subsequently thermal deposited coating.

REFERENCES:
patent: 3068016 (1962-12-01), Dega
patent: 3147087 (1964-09-01), Eisenlohr
patent: 3268997 (1966-08-01), Miller
patent: 3342563 (1967-09-01), Butts
patent: 3343953 (1967-09-01), Schladitz
patent: 3350178 (1967-10-01), Miller

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