Process for preparing acicular ferromagnetic material consisting

Details Process for preparing acicular ferromagnetic material consisting Process for preparing acicular ferromagnetic material consisting

1989-10-31

1991-07-09

Cooper, Jack

Compositions

Magnetic

Free metal or alloy containing

252 6251, 252 6256, 423607, C01G 3727

Patent

active

050303716

ABSTRACT:
An acicular, ferromagnetic material which has a high coercive force and essentially consists of iron-containing chromium dioxide is prepared by thermal decomposition of hydrated chromium(III) chromate under superatmospheric pressure.

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patent: 3911095 (1975-10-01), Montiglio et al.
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patent: 3979310 (1976-09-01), Montiglio et al.
patent: 4524008 (1985-06-01), Chen
Williams et al., An Analytical Model of the Write Process in Digital Magnetic Recording AIP Conference Proceedings, Series Editor Wolfe, No. t 1971, pp. 738-742.

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