发明名称 |
Magnetic alloy powder for permanent magnet and method for producing the same |
摘要 |
<p>Magnetic alloy powder for a permanent magnet contains: R of about 20 mass percent to about 40 mass percent (R is Y, or at least one type of rare earth element); T of about 60 mass percent to about 79 mass percent (T is a transition metal including Fe as a primary component); and Q of about 0.5 mass percent to about 2.0 mass percent (Q is an element including B (boron) and C (carbon)). The magnetic alloy powder is formed by an atomize method, and the shape of particles of the powder is substantially spherical. The magnetic alloy powder includes a compound phase having Nd2Fe14B tetragonal structure as a primary composition phase. A ratio of a content of C to a total content of B and C is about 0.05 to about 0.90. <IMAGE></p> |
申请公布号 |
EP1189245(A2) |
申请公布日期 |
2002.03.20 |
申请号 |
EP20010122304 |
申请日期 |
2001.09.18 |
申请人 |
SUMITOMO SPECIAL METALS COMPANY LIMITED |
发明人 |
TOMIZAWA, HIROYUKI;KANEKO, YUJI |
分类号 |
H01F1/057;H01F1/058;(IPC1-7):H01F1/057 |
主分类号 |
H01F1/057 |
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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