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Magnetic properties and microstructure of Nd-Fe-B sintered magnets with DyH_x addition

机译：添加DyH_x的Nd-Fe-B烧结磁体的磁性能和微观结构

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摘要

The effects of DyH_x addition on magnetic properties and microstructure of Nd-Fe-B sintered magnets were investigated. In order to obtain the best magnetic properties, the effects of sintering temperature and annealing time on magnetic properties were also investigated. The results shown that the addition of DyH_x can affect the microstructure, increase the intrinsic coercivity (H_(cj)), and improve the thermal stability of sintered Nd-Fe-B magnets. The remanence (B_r) and H_(cj) showed different variation trends as sintering temperature changes. Within a reasonable range, sintering at higher temperature can get higher B_r but lower H_(cj). The H_(cj) was further increased by heat treatment and annealing time was extended.
机译：研究了DyH_x的添加对Nd-Fe-B烧结磁体的磁性能和微观结构的影响。为了获得最佳的磁性能，还研究了烧结温度和退火时间对磁性能的影响。结果表明，添加DyH_x可以影响显微组织，提高固有矫顽力（H_（cj）），并改善Nd-Fe-B烧结磁体的热稳定性。剩磁（B_r）和H_（cj）随着烧结温度的变化呈现出不同的变化趋势。在合理的范围内，较高温度下的烧结可获得较高的B_r但较低的H_（cj）。通过热处理进一步提高了H_（cj），并延长了退火时间。

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  • 来源
    《Journal of Applied Physics》 |2012年第2期|p.07A705.1-07A705.3|共3页
  • 作者

    Y. H. Liu; S. Guo; X. M. Liu; D. Lee; A. R. Yan;

  • 作者单位

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China;

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China;

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China;

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China;

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China,Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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