Spindle-shaped magnetic iron based alloy particles

Details Spindle-shaped magnetic iron based alloy particles Spindle-shaped magnetic iron based alloy particles

1993-09-09

1995-11-14

Wyszomierski, George

Metal treatment

Stock

Magnetic

148310, 148311, H01F 106

Patent

active

054663067

ABSTRACT:
Disclosed herein are spindle-shaped magnetic iron based alloy particles containing at least one selected from the group consisting of Ni, Al, Si, P, Co, Mg, B and Zn, which have a particle length of 0.05 to 0.40 .mu.m, a crystallite size of 110 to 180 .ANG., a specific surface area of 30 to 60 m.sup.2 /g, a coercive force of 1,300 to 1,700 Oe and a saturation magnetization (.sigma.s) of not less than 100 emu/g and a process for producing the same.

REFERENCES:
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patent: 4773931 (1988-09-01), Mishima et al.
patent: 4873010 (1989-10-01), Takedoi et al.
patent: 4990182 (1991-02-01), Kageyama et al.
patent: 5156922 (1992-10-01), Mishima et al.
patent: 5260132 (1993-11-01), Nakazumi et al.

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