Volume 65 Issue 5
Jun.  2021
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HOU Ruifen, ZHANG Zhigao, XU Zhiyi, DONG Hui, YAN Lizhong, YANG Tian, YANG Yiwei. Study on Saturation Magnetization Behavior of Sintered NdFeB[J]. Metrology Science and Technology, 2021, 65(5): 93-95, 35. doi: 10.12338/j.issn.2096-9015.2020.9012
Citation: HOU Ruifen, ZHANG Zhigao, XU Zhiyi, DONG Hui, YAN Lizhong, YANG Tian, YANG Yiwei. Study on Saturation Magnetization Behavior of Sintered NdFeB[J]. Metrology Science and Technology, 2021, 65(5): 93-95, 35. doi: 10.12338/j.issn.2096-9015.2020.9012

Study on Saturation Magnetization Behavior of Sintered NdFeB

doi: 10.12338/j.issn.2096-9015.2020.9012
  • Available Online: 2021-06-07
  • Publish Date: 2021-06-24
  • To clarify the relationship between the minimum saturation magnetization field strength required for sintered NdFeB magnets and their intrinsic coercivity or saturation polarization in the initial state of magnetic neutrality and magnetized history, three different grades of sintered NdFeB magnets were selected in different initial states. The magnetic dipole moments and the demagnetization curves were measured after magnetizing under different magnetic field strengths. The results show that for sintered NdFeB magnets, only a magnetization field of Hs=2Js0 is required to saturate the magnets in the state of magnetic neutrality. For magnets with magnetized history, a magnetization field of Hs=3Js0 is required to realize saturation magnetization.
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  • [1]
    周寿增, 董清飞. 烧结钕铁硼稀土永磁材料和技术[M]. 北京: 冶金工业出版社, 2011: 47-60.
    [2]
    贺建, 舒康颖, 谢永忠, 等. 永磁(硬磁)材料 磁性实验方法: GB/T 3217-2013[S]. 北京: 中华人民共和国国家质量监督检验检疫总局和中国国家标准化管理委员会, 2013.
    [3]
    Magnetic materials - Part 5: Permanent magnet (magnetically hard) materials - Methods of measurement of magnetic properties: IEC 60404-5[S]. Switzerland: International Electrotechnical Commission, 1993.
    [4]
    Magnetizing behaviour of permanent magnets, IEC/TR 62517[R]. International Electrotechnical Commission, 2009.
    [5]
    W. J. Gong, R. F. Hou, Z. G. Zhang, et al. Recent development of measurement of permanent magnetic materials[C]. Materials Research Innovations. England: Maney Publishing, 2015: 341-345.
    [6]
    高汝伟, 姜寿亭, 李东. Nd-Fe-B永磁体磁化和反磁化研究[C]. 中国稀土学报. 北京: 中国学术期刊出版社, 1998: 33-36.
    [7]
    严飞, 冯海波. 烧结Nd-Fe-B磁体充磁特性研究[C]. 金属功能材料. 北京: 中国钢铁工业协会出版, 2020: 61-64.
    [8]
    W. J. Gong, X. Wang, W. Liu, et al. Enhancing the perpendicular anisotropy of NdDyFeB films by Dy diffusion process[C]. Journal of Applied Physics. America: American Institute of Physics, 2012: 07A729.
    [9]
    Weijie Gong, Xinguo Zhao, Wen Fan, et al. Structure, Magnetic Properties, and Coercivity Mechanism of Rapidly Quenched MnxGa Ribbons[C]. IEEE TRANSACTIONS ON MAGNETICS. America: IEEE, 2015: 2101104.
    [10]
    贺建. 用抽拉或旋转方式测量铁磁材料样品磁偶极矩的方法: GB38437-2019[S]. 北京: 国家市场监管总局和国家标准化管理委员会, 2019.
    [11]
    Methods of measurement of the magnetic dipole moment of a ferromagnetic material specimen by the withdrawal or rotation method: IEC60404-14[S]. Switzerland: International Electrotechnical Commission, 2002.
    [12]
    Ruifen Hou, Zhigao Zhang, Lu Dai, et al. The Calibration method of Helmholtz coils for the permanent Magnet[C]. Advanced Materials Research Vols, Switzerland: Trans Tech Publications, 2014: 849-852.
    [13]
    许志一, 虞志书, 李小菊, 等. 永磁材料磁特性测量仪校准规范: JJF 1829-2020[S]. 北京: 国家市场监督总局, 2020.
    [14]
    刘国征, 赵明静, 付建龙, 等. 烧结钕铁硼永磁材料: GB/T 13560-2017[S]. 北京: 中华人民共和国国家质量监督检验检疫总局和中国国家标准化管理委员会, 2017.
    [15]
    谢永忠, 詹亚萍, 谢忠光. 硬磁材料一般技术条件: GB/T 17951-2005[S]. 北京: 中华人民共和国国家质量监督检验检疫总局和中国国家标准化管理委员会, 2005.
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