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Influence of Cu Content on Crystallization Kinetics and Microstructure of Nd-Fe-B Thick Ribbons

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Abstract

The effects of Cu addition on the crystallization behavior and microstructure of melt-spun ribbons have been studied. XRD shows that Cu addition promotes the crystallization. DSC shows that Cu addition can change the crystallization behavior of (Nd0.75Pr0.25)9.5(FeNbCo)79.5(BC)11 from a two-step to a single-step process. Three-dimensional atom probe (3DAP) results show the formation of a high-number density of Cu clusters in higher Cu addition, while Cu clusters were not found in the alloy of lower Cu addition.

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Acknowledgments

The author is grateful for Dr. W. Q. Liu, Shanghai University for 3DAP. This study is supported by the National Natural Science Foundation of China under Grant (No. 51174030).

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Authors and Affiliations

  1. Tianjin Sanhuan Lucky New Materials Inc., Tianjin, 300457, China

    GuangLe Dong, FengHua Chen, ZhiXue Li & Peng Ji

  2. Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, 100083, China

    Fang Yang & ZhiMeng Guo

  3. State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, China

    YanLi Sui

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  1. GuangLe Dong
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  2. Fang Yang
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  3. FengHua Chen
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Correspondence to GuangLe Dong.

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Dong, G., Yang, F., Chen, F. et al. Influence of Cu Content on Crystallization Kinetics and Microstructure of Nd-Fe-B Thick Ribbons. J Supercond Nov Magn 30, 3231–3239 (2017). https://doi.org/10.1007/s10948-017-4064-y

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  • DOI: https://doi.org/10.1007/s10948-017-4064-y

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