发明名称 |
Method of producing Ni-Cu-Zn ferrite material |
摘要 |
A method of producing a Ni-Cu-Zn ferrite material comprises the steps of preparing a mixture of an iron compound powder having a specific surface area of about 8.5 m2/g or more, a nickel compound powder, copper compound powder and a zinc compound powder, the mixture having a specific surface area of about 8.0 m2/g or more; pre-calcining the mixture such that the pre-calcined mixture has a surface area of about 5.0 m2/g or more and a spinel crystal synthesizability within a range of about 80.5% to 98%; and milling the pre-calcined mixture to obtain a powder of a Ni-Cu-Zn ferrite material having a specific surface area of about 6.0 m2/g or more.
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申请公布号 |
US6187218(B1) |
申请公布日期 |
2001.02.13 |
申请号 |
US19990408053 |
申请日期 |
1999.09.29 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
KODAMA TAKASHI;AJICHI HIDEO;KONOIKE TAKEHIRO;TOMONO KUNISABURO |
分类号 |
C01G49/00;C04B35/26;C04B35/626;(IPC1-7):C04B35/26;H01F1/10 |
主分类号 |
C01G49/00 |
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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