Process for manufacturing ceramic magnetic material

Details Process for manufacturing ceramic magnetic material Process for manufacturing ceramic magnetic material

1990-03-01

1991-12-17

Dixon, Jr., William R.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423595, C01G 4900

Patent

active

050733591

ABSTRACT:
A process for the manufacture of ceramic materials by production of the citrates and pyrolysis thereof. Specifically, the process yields ultra-fine powders by preparing solutions of respective oxides and/or carbonates in nitric acid, either separately or together; adding citric acid to the solution to obtain metal-organic precipitates and neutralizing the solution with ammonium hydroxide. The neutralized solution is then heated to a temperature so that self-ignition occurs resulting in the production of the ceramic magnetic material as a homogeneous ultra-fine powder.

REFERENCES:
patent: 4097392 (1978-06-01), Goldman
patent: 4486401 (1984-12-01), Arons et al
patent: 4680130 (1987-07-01), Hibst

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