发明名称 |
Ferrite powder and its production method |
摘要 |
A ferrite powder for producing a ferrite sintered body is provided, the ferrite powder having a median diameter D50 [μm] in a range from 0.1 to 0.8 μm, a degree of spinel formation in a range from 45 to 90%, and a remanent magnetization Br per unit mass [emu/g] satisfying the following formula after application of the maximum magnetic field of 15 kOe: 0.05≦̸Br≦̸2.0(ln.D50)+6.3. This ferrite powder produces a homogeneous ferrite sintered body having very few cracks by gel casting.
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申请公布号 |
US8343375(B2) |
申请公布日期 |
2013.01.01 |
申请号 |
US20090607207 |
申请日期 |
2009.10.28 |
申请人 |
NGK INSULATORS, LTD.;KOBAYASHI NOBUYUKI;OZAWA SHUICHI;SATO KEI |
发明人 |
KOBAYASHI NOBUYUKI;OZAWA SHUICHI;SATO KEI |
分类号 |
H01F17/00;C04B35/26;H01F41/04 |
主分类号 |
H01F17/00 |
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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