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Effect of Heat Treatment on Microstructure and Magnetic Properties of Ce-Doped NdFeB Ribbons

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Abstract

The substitution for Nd by abundant element cerium (Ce) is a practical way for the comprehensive utilization of rare earth resources in NdFeB permanent magnets. In this letter, we have prepared the Ce-doped NdFeB ribbons and conventional NdFeB ribbons by melt quenching method and investigated the effects of heat treatment on the crystallization behavior, microstructure, and magnetic properties of the alloy. The results show that: (1) The crystallization behavior and the microstructural changes of the (Nd,Ce)FeB magnets are similar to the conventional NdFeB magnet when heat treatment. In addition, the Ce2Fe14B phase has a significant effect on the properties of the whole magnets. (2)The NdFeB phase and CeFeB phase are relatively close to each other after being precipitated from the amorphous phase. The coupling effect between the two phases is strong enough to weaken the effect of the addition of Ce and making the properties of the NdFeB magnets to not reduce too much after adding Ce.

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Funding

This work is supported by Shanxi Science and Technology Foundation Platform Construction Projects (2015091011), Jincheng Science and Technology Planning Projects (201501004-21), Taiyuan Science and Technology Planning Projects (110153), China Postdoctoral Science Foundation-funded project (2015M571285), the Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province, Research Project supported by Shanxi Scholarship Council of China (2013-098, 2016-092), and Proposal of Open Project of Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education Northeastern University (ATM20170003).

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Authors and Affiliations

  1. Institute of Advanced Materials, School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi, People’s Republic of China

    Mingang Zhang, Wen Zhang, Yanping Guo, Fan Li & Wenhe Liu

  2. Department of Physics, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi, People’s Republic of China

    Fenghua Chen

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  1. Mingang Zhang
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  2. Wen Zhang
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  3. Fenghua Chen
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  4. Yanping Guo
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  5. Fan Li
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  6. Wenhe Liu
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Correspondence to Mingang Zhang.

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Zhang, M., Zhang, W., Chen, F. et al. Effect of Heat Treatment on Microstructure and Magnetic Properties of Ce-Doped NdFeB Ribbons. J Supercond Nov Magn 31, 2811–2816 (2018). https://doi.org/10.1007/s10948-017-4553-z

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  • DOI: https://doi.org/10.1007/s10948-017-4553-z

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