Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1976-01-14
1977-05-31
White, Robert F.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264 66, C04B 3332
Patent
active
040269752
ABSTRACT:
A method of manufacturing an annular, radially anisotropic, permanently magnetizable body substantially free of cracks and having an inner diameter which is at least 0.8 times the outer diameter and consists of a material of the formula MeO.6Fe.sub.2 O.sub.3, Me being barium, strontium or lead in which after a molded from said material in a radial magnetic field, the body is hydrostatically compressed to increase its density prior to sintering.
REFERENCES:
patent: 3562371 (1971-02-01), Bash
patent: 3602986 (1971-09-01), Conwicke
patent: 3634559 (1972-01-01), Haes et al.
patent: 3849213 (1974-11-01), Baermann
Parrish John
Steinhauser Carl P.
Trifari Frank R.
U.S. Philips Corporation
White Robert F.
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