Composite powders sprayable to form abradable seal coatings

Details Composite powders sprayable to form abradable seal coatings Composite powders sprayable to form abradable seal coatings

1979-11-06

1981-09-22

Beck, Shrive P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

427217, 427422, 427423, 428328, 428338, 428403, 428404, 428450, B05D 110, B32B 516

Patent

active

042910897

ABSTRACT:
A composite powder sprayable by thermal spraying onto a substrate to form an abradable seal coating with suitable strength and erosion resistance. Each powder particle has a core of non-metallic solid material surrounded by a layer of metallic material selected from the group consisting of nickel and nickel alloys. At least about 95% of the particles have a size less than about 150 microns, at least about 50 to about 90% of the particles have a size greater than about 75 microns, and less than about 10% of the particles have a size less than about 45 microns.

REFERENCES:
patent: 2853398 (1958-09-01), Mackiw et al.
patent: 3535149 (1970-10-01), Dunn et al.
patent: 3617358 (1971-11-01), Dittrich
patent: 3765923 (1973-10-01), Christensen
patent: 3914507 (1975-10-01), Fustukian
patent: 3991240 (1976-11-01), Harrington
patent: 4010775 (1977-03-01), Roberts
patent: 4055705 (1977-10-01), Stecura
patent: 4063907 (1977-12-01), Lee et al.

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