Growth of quasi-texture in nanostructured magnets with ultra-high coercivity
文献类型：期刊论文
| 作者 | Zha, Liang; Han, Yuyan; Pi, Li; Luo, Yang; Yu, Dunbo; Han, Li; Xu, Junjie; Yang, Wenyun; Liu, Shunquan; Han, Jingzhi |
| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 2020 |
| 卷号 | 195页码:282-291 |
| 关键词 | NANOCOMPOSITE MAGNETS CRYSTALLOGRAPHIC TEXTURE DEFORMATION MODEL MICROSTRUCTURE NANOPARTICLES ALLOYS FILMS |
| DOI | 10.1016/j.actamat.2020.05.059 |
| 英文摘要 | Controlling the phases and structure of nanostructured rare-earth-based permanent magnets is essential to develop magnets with high performance in clean energy technologies. Importantly, simultaneously controlling the texture and morphology of nano-grains can lead to both high coercivity and high maximum energy product in the nanostructured magnets. Here, we demonstrated the use of electron-beam exposure (EBE) as a rapid heating technique to control the crystallization of the Pr-Fe-B magnet. Due to the effect of the extremely high heating rate, EBE can be adapted to control the phase, grain size, and morphology of the amorphous precursor as well as the texture of Pr-Fe-B nano-grains. A quasi-texture nanostructure with optimal magnetic exchange interactions is thus achieved, leading to a record-high coercivity of 29.1 kOe at room temperature. We further applied the Landau model and Coble-Creep model to explain the positive impact of the EBE on the crystallization and microstructure of the Pr-Fe-B magnet. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 学科主题 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20579]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Yang, JB (corresponding author), Peking Univ, Collaborat Innovat Ctr Quantum Matter, Beijing Key Lab Magnetoelect Mat & Devices, State Key Lab Mesoscop Phys,Sch Phys, Beijing 100871, Peoples R China. 2.Xia, WX (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Magnet Mat & Devices, Ningbo 315201, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zha, Liang,Han, Yuyan,Pi, Li,et al. Growth of quasi-texture in nanostructured magnets with ultra-high coercivity[J]. ACTA MATERIALIA,2020,195:282-291. |
| APA | Zha, Liang.,Han, Yuyan.,Pi, Li.,Luo, Yang.,Yu, Dunbo.,...&Yang, Jinbo.(2020).Growth of quasi-texture in nanostructured magnets with ultra-high coercivity.ACTA MATERIALIA,195,282-291. |
| MLA | Zha, Liang,et al."Growth of quasi-texture in nanostructured magnets with ultra-high coercivity".ACTA MATERIALIA 195(2020):282-291. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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