Plate-like barium ferrite particles suitable for use in magnetic

Details Plate-like barium ferrite particles suitable for use in magnetic Plate-like barium ferrite particles suitable for use in magnetic

1987-01-29

1989-02-21

Thibodeau, Paul J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

252 6255, 252 6256, 252 6263, 427217, 428694, 428900, B32B 516

Patent

active

048064297

ABSTRACT:
Disclosed herein are plate-like barium ferrite particles with a solid solution of zinc on the surface thereof, which have an average particle diameter of 0.05 to 0.3 .mu.m, a coercive force of 300 to 1,500 Oe and a magnetization of not less than 55 emu/g in magnetic field of 10 KOe, and which are represented by the following formula (I):

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patent: 4622159 (1986-11-01), Licci et al.
patent: 4664831 (1987-05-01), Hibst et al.
patent: 4683167 (1987-07-01), Scott et al.
Patent Abstracts of Japan, vol. 7, No. 142 (P. 205) [1287].

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