发明名称 |
PERMANENTMAGNET |
摘要 |
The invention concerns a permanent magnet with at least one inter-metallic compound with a tetragonal crystal structure and containing at least one rare earth (R), at least one transition metal (TM) and boron (B). The materials used, which are inexpensive and give a permanent magnet with excellent magnetic properties, are characterized by the composition (R)2TM14B1 + (R)2TM14C1 + an (R)-rich boundary phase, (R)2TM14B1 and (R)2TM14C1 in the tetragonal crystal structure forming magnetic phases, while the (R)-rich boundary phase is non-magnetic and the contents of B and C are governed by the relationship Q = SIGMA Bw + C1-w where w = 0.9 to 0.99.
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申请公布号 |
DE3928389(A1) |
申请公布日期 |
1991.03.14 |
申请号 |
DE19893928389 |
申请日期 |
1989.08.28 |
申请人 |
MAGNETFABRIK SCHRAMBERG GMBH & CO, 7230 SCHRAMBERG, DE |
发明人 |
GAIFTI, SEVI, 7234 AICHHALDEN, DE |
分类号 |
B22F1/00;B22F3/00;C22C38/00;H01F1/053;H01F1/057;H01F1/058;H01F41/02 |
主分类号 |
B22F1/00 |
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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