Nd2Fe14B/PrCo5纳米双相快淬带的磁性能与相互作用

doi:10.13251/j.issn.0254-6051.2025.01.006

金属热处理 ›› 2025, Vol. 50 ›› Issue (1): 42-46.DOI: 10.13251/j.issn.0254-6051.2025.01.006

Nd₂Fe₁₄B/PrCo₅纳米双相快淬带的磁性能与相互作用

薄宇^1,2, 左建华^1,2, 王浩^1,2, 鲁伟^1,2

1.内蒙古科技大学理学院, 内蒙古包头 014010;
2.内蒙古自治区高性能稀土永磁材料重点实验室, 内蒙古包头 014010

收稿日期:2024-08-12 修回日期:2024-11-19 出版日期:2025-01-25 发布日期:2025-03-12
通讯作者: 左建华,讲师,博士,E-mail:zuozjk@126.com
作者简介:薄宇(1999—),女,硕士研究生,主要研究方向为稀土永磁材料,E-mail:435417102@qq.com。
基金资助:
国家自然科学基金(51761031);内蒙古自治区直属高校基本科研业务(2023QNJS117,2023RCTD009)

Magnetic properties and interaction of nanocomposite Nd₂Fe₁₄B/PrCo₅ melt-spun ribbons

Bo Yu^1,2, Zuo Jianhua^1,2, Wang Hao^1,2, Lu Wei^1,2

1. School of Science, Inner Mongolia University of Science and Technology, Baotou Inner Mongolia 014010, China;
2. Key Laboratory of High Performance Rare Earth Permanent Magnet Materials, Baotou Inner Mongolia 014010, China

Received:2024-08-12 Revised:2024-11-19 Online:2025-01-25 Published:2025-03-12

摘要/Abstract

摘要： 采用感应熔炼和熔体快淬法制备Nd₂Fe₁₄B/PrCo₅纳米双相快淬带,研究了PrCo₅含量对快淬带相结构、磁性能和交换耦合作用的影响。XRD测试结果表明,快淬带具有Nd₂Fe₁₄B和PrCo₅双硬磁相,并且在制备过程中并未氧化和产生新相。PrCo₅含量对磁性能影响明显,适量添加PrCo₅有助于提升矫顽力,但剩磁、最大磁能积随PrCo₅含量的增加而降低。回复曲线研究表明,回复曲线的“开口”现象与PrCo₅含量有关;δ_M曲线测试表明Nd₂Fe₁₄B/PrCo₅快淬带存在强烈的交换耦合作用。综合分析,PrCo₅含量为12%时Nd₂Fe₁₄B/PrCo₅纳米双相快淬带获得最优磁性能,剩磁M_r=8.73 kGs,矫顽力H_cj=11.03 kOe,最大磁能积(BH)_Max=15.83 MGOe。

关键词: 纳米双相, Nd₂Fe₁₄B/PrCo₅快淬带, 磁性能, 交换耦合

Abstract: The nanocomposite Nd₂Fe₁₄B/PrCo₅ melt-spun ribbons were prepared by induction melting and melt-spinning technique, and the effect of PrCo₅ addition on the phase structure, magnetic properties and exchange coupling was investigated. The XRD test results indicate that the ribbons has dual hard magnetic phases of Nd₂Fe₁₄B and PrCo₅, and no oxidation or formation of new phases occur during the preparation process. The content of PrCo₅ has an obvious effect on magnetic properties, and the appropriate addition of PrCo₅ can help improve coercivity. However, the remanent and maximum magnetic energy product decrease with the increase of PrCo₅ content. Research on the recoil loops shows that the "opening" phenomenon of the recoil loops is related to the content of PrCo₅, and the δ_M curve test shows that there is a strong exchange coupling effect in the Nd₂Fe₁₄B/PrCo₅ ribbons. Comprehensive analysis shows that optimal magnetic properties of the nanocomposite Nd₂Fe₁₄B/PrCo₅ ribbons can be obtained at 12%PrCo₅ content, with remanent M_r of 8.73 kGs, coercive H_cj of 11.03 kOe, and the maximum magnetic energy product (BH)_Max of 15.83 MGOe.

Key words: nanocomposite, Nd₂Fe₁₄B/PrCo₅ melt-spun ribbons, magnetic properties, exchange coupling

中图分类号:

TM273

薄宇, 左建华, 王浩, 鲁伟. Nd₂Fe₁₄B/PrCo₅纳米双相快淬带的磁性能与相互作用[J]. 金属热处理, 2025, 50(1): 42-46.

Bo Yu, Zuo Jianhua, Wang Hao, Lu Wei. Magnetic properties and interaction of nanocomposite Nd₂Fe₁₄B/PrCo₅ melt-spun ribbons[J]. Heat Treatment of Metals, 2025, 50(1): 42-46.

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Nd₂Fe₁₄B/PrCo₅纳米双相快淬带的磁性能与相互作用

Magnetic properties and interaction of nanocomposite Nd₂Fe₁₄B/PrCo₅ melt-spun ribbons

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