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The quasi-binary phase diagrams of R 2Fe14B–Ce2Fe14B (R = Nd, Pr) systems

  • Chengfu Xu , Senyang Fu , Ling Peng EMAIL logo , Yongquan Yang , Xinqiang Gao , Lei Ma , Jinping Tian , Rongjin Liu , Zhengfei Gu , Qingrong Yao , Guanghui Rao and Linyi Cheng
Published/Copyright: May 17, 2024

Abstract

The phase relations of the R 2Fe14B–Ce2Fe14B (R = Nd, Pr) pseudobinary systems have been investigated by using X-ray powder diffraction, scanning electron microscopy equipped with energy dispersive X-ray spectroscopy and differential thermal analysis. The X-ray powder diffraction results show that continuous solid solutions were formed in this R 2Fe14B–Ce2Fe14B (R = Nd, Pr) pseudobinary systems, and all (R , Ce)2Fe14B solid solutions belong to the tetragonal structure with space group P42/mnm. With the increase in Ce content, the lattice parameters a, c, the peritectic reaction temperatures of the (R, Ce)2Fe14B (R = Nd, Pr) solid solutions decrease linearly, and the cell volume V varies in the form of the regression line. Based on the X-ray powder diffraction results and differential thermal analysis data, the quasi-binary phase diagrams of the R 2Fe14B–Ce2Fe14B (R = Nd, Pr) systems have been established.


Corresponding author: Ling Peng, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, Jiangxi, P.R. China, E-mail:

  1. Research ethics: Not applicable.

  2. Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  3. Competing interests: The authors state no competing interests.

  4. Research funding: This work was supported by the Guangxi Natural Science Foundation (Grant No: 2021GXNSFAA220081), the National Natural Science Foundation of China (Grant No: 52361004 and Grant No: 52171054), the National Basic Research Program of China (Grant No: 2014CB643703) and the Open Research Fund of Guangxi Key Laboratory of Information Materials (Grant No: 221021-K).

  5. Data availability: Not applicable.

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Received: 2023-09-23
Accepted: 2024-01-17
Published Online: 2024-05-17
Published in Print: 2024-06-25

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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