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Effect of Cu Addition on the Microstructure and Magnetic Properties of the Nd-Fe-B Melt-Spun Ribbons

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Abstract

Microstructure and magnetic properties are systematically investigated to figure out what effect does the Cu content have on (Pr0.25Nd0.75)2Fe13.85-xCo0.1Ti0.05CuxB alloys in this work. The experimental result shows the optimal magnetic properties that the remanent magnetization Jr = 1.13 T, the coercivity Hcj = 588.56 kA/m, and the maximum magnetic energy product (BH)max = 260.66 kJ/m3 at the Cu content x = 0.6. However, it shows that Cu addition can promote the formation of the amorphous phase, which is an important reason for the coercivity decrease. Microstructure observation indicates that the reason for the magnetic property decrease is that the hard 2:14:1 magnetic phases and soft α-Fe phases display a state of irregular distribution with Cu content increasing.

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Funding

This work was supported by the Natural Science Foundation of China (Grant No. 51761007) and the Natural Science Foundation of Guangxi (Grant No. 2021GXNSFDA075009).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin, 541004, People’s Republic of China

    Kai Wang, Jianqiu Deng, Jiang Wang, Guanghui Rao, Qingrong Yao & Huaiying Zhou

  2. China Rare Metals and Rare Earth (Guangxi) Jinyuan New Materials Co., Ltd, Hezhou, 542603, People’s Republic of China

    Weichao Huang, Jue Xie & Yuxin Chen

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  1. Kai Wang
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  2. Weichao Huang
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  3. Jue Xie
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The manuscript was written through contributions of all authors. All authors have given approval to the final version of the manuscript.

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Correspondence to Qingrong Yao or Huaiying Zhou.

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We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work, there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construe as influencing the position presented in, or the review of, the manuscript entitled, “Effect of Cu addition on the microstructure and magnetic properties of the Nd-Fe-B melt-spun ribbons”.

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Wang, K., Huang, W., Xie, J. et al. Effect of Cu Addition on the Microstructure and Magnetic Properties of the Nd-Fe-B Melt-Spun Ribbons. J Supercond Nov Magn 34, 3369–3376 (2021). https://doi.org/10.1007/s10948-021-05993-w

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