Growth of quasi-texture in nanostructured magnets with ultra-high coercivity | |
Zha, Liang6; Han, Yuyan1; Pi, Li1; Luo, Yang7; Yu, Dunbo7; Han, Li2; Xu, Junjie5; Yang, Wenyun6; Liu, Shunquan6; Han, Jingzhi6 | |
刊名 | ACTA MATERIALIA
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2020-08-15 | |
卷号 | 195 |
关键词 | Nanocrystalline material Crystallographic orientation Nanoscale magnets Magnetic properties Ultra-high coercivity Pr-Fe-B |
ISSN号 | 1359-6454 |
DOI | 10.1016/j.actamat.2020.05.059 |
通讯作者 | Xia, Weixing(xiawxing@nimte.ac.cn) ; Yang, Jinbo(jbyang@pku.edu.cn) |
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. |
资助项目 | National Key Research and Development Program of China[2016YFB0700901] ; National Key Research and Development Program of China[2017YFA0206303] ; National Key Research and Development Program of China[2017YFA0403701] ; National Natural Science Foundation of China[51731001] ; National Natural Science Foundation of China[11675006] ; National Natural Science Foundation of China[51371009] ; China Scholarship Council (CSC)[201906010220] |
WOS关键词 | NANOCOMPOSITE MAGNETS ; CRYSTALLOGRAPHIC TEXTURE ; DEFORMATION ; MODEL ; MICROSTRUCTURE ; NANOPARTICLES ; ALLOYS ; FILMS |
WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000552116400027 |
资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; China Scholarship Council (CSC) |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/43400] ![]() |
专题 | 合肥物质科学研究院_中科院强磁场科学中心 |
通讯作者 | Xia, Weixing; Yang, Jinbo |
作者单位 | 1.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Elect Engn, Dept Micronano Fabricat Technol, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Magnet Mat & Devices, Ningbo 315201, Peoples R China 4.Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA 5.Peking Univ, Coll Engn, Beijing Innovat Ctr Engn Sci & Adv Technol BIC ES, Beijing Key Lab Magnetoelect Mat & Devices BKLMMD, Beijing 100871, Peoples R China 6.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 7.GRINM Grp Co Ltd, Natl Engn Res Ctr Rare Earth Mat, Beijing 100088, 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. |
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. |
MLA | Zha, Liang,et al."Growth of quasi-texture in nanostructured magnets with ultra-high coercivity".ACTA MATERIALIA 195(2020). |
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