Porous metal abradable seal material

Details Porous metal abradable seal material Porous metal abradable seal material

1985-09-05

1987-05-12

Swisher, Nancy A.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

423592, 501132, B05D 108

Patent

active

046649735

ABSTRACT:
Porous metal structures are especially useful as abradable seals in axial flow compressors. Carefully defined oxide content and density provide a superior combination of abradability and particulate erosion resistance. The seals are comprised of 1-30 weight percent oxide and have 27-38 percent of the solid metal density. A preferred seal is made by plasma arc spraying a mixture of 80Ni-20Cr and polymethylmethacrylate powders and then heating the resultant deposit in air to about 315.degree. C. to cause the polymer to flee. The nichrome seal will have less than 15 percent oxide and a density of about 2.7 g/cm.sup.3, about 32 percent of the solid metal density.

REFERENCES:
patent: 2989373 (1961-06-01), Llewelyn et al.
patent: 3092306 (1963-06-01), Eder
patent: 3147087 (1964-09-01), Eisenlohr
patent: 3342547 (1967-09-01), Illis et al.
patent: 3350178 (1967-10-01), Miller
patent: 3540884 (1970-11-01), Horbury
patent: 3723165 (1973-03-01), Longo et al.
patent: 3964877 (1976-06-01), Bessen et al.
patent: 4053578 (1975-10-01), Hill et al.
patent: 4336276 (1982-06-01), Bill et al.

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