H - Electricity – 01 – G
Patent
H - Electricity
01
G
31/145
H01G 7/06 (2006.01) C01G 49/00 (2006.01) C04B 35/26 (2006.01)
Patent
CA 1242314
ABSTRACT Process of calcining and ball milling Manganese Zinc MnZn, ferrite material for achieving a ferrite having a ferrous iron content appropriate for optimum magnetic properties. The process includes a controlled atmo- sphere, time, and temperature for the calcining process step, and a controlled ball milling step overtime where the interaction of the stainless steel balls and milled slurry contributes to final ferrous iron content. These two process steps are balanced yielding a MnZn ferrite of a predetermined particle size with a controlled ferrous iron content which is a function of both the calcining and ball milling steps.
464052
Scheidecker Ralph W.
Suchomel Robert R.
International Business Machines Corporation
Saunders R. H. & Co.
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