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发明公开
CN110853857A 含Ho和/或Gd的合金、稀土永磁体、原料、制备方法、用途 有权 转让

含Ho和/或Gd的合金、稀土永磁体、原料、制备方法、用途
摘要：
本发明公开了一种含Ho和/或Gd的合金、稀土永磁体、原料、制备方法、用途。含Ho和/或Gd的合金包括以下组分：Ho和/或Gd：29～39wt％，B：0.8～1.2wt％，M：0～6wt％，余量为Fe及不可避免的杂质；M包括Cu、Co、Al、Zr、Nb、Ti、Ga、V、W、Hf、Ta、Mn、Ni、Ge、S和Si元素中的一种或者多种。使用含Ho和/或Gd的合金作为稀土永磁体中的一种主相合金，所制备的稀土永磁体具有低温度敏感性，拓宽了烧结钕铁硼永磁体的应用范围，剩磁温度系数绝对值低至0.0505％，矫顽力温度系数绝对值低至0.382％。
摘要（英）：

The invention discloses an alloy containing Ho and/or Gd, a rare earth permanent magnet, a raw material, a preparation method and a use. The alloy containing Ho and/or Gd comprises the following components: 29-39 wt% of Ho and/or Gd, 0.8-1.2 wt% of B, and 0-6 wt% of M, with the balance being Fe and inevitable impurities, wherein M comprises one or more of Cu, Co, Al, Zr, Nb, Ti, Ga, V, W, Hf, Ta,Mn, Ni, Ge, S and Si. The alloy containing Ho and/or Gd is used as a main phase alloy in the rare earth permanent magnet, and the prepared rare earth permanent magnet has low temperature sensitivity.The application range of the sintered neodymium iron boron permanent magnet is widened. The absolute value of the residual magnetism temperature coefficient is as low as 0.0505%, and the absolute value of the coercive force temperature coefficient is as low as 0.382%.

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