发明名称 |
Process of preparing ferrite with a predetermined ferrous content. |
摘要 |
<p>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 atmosphere, 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.</p> |
申请公布号 |
EP0149758(A2) |
申请公布日期 |
1985.07.31 |
申请号 |
EP19840114283 |
申请日期 |
1984.11.27 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
SCHEIDECKER, RALPH WILLIAM;SUCHOMEL, ROBERT RICHARD |
分类号 |
H01F1/34;C01G49/00;C04B35/26;C04B35/38;(IPC1-7):C04B35/38;C01G49/02 |
主分类号 |
H01F1/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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