中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
Intrinsically High Magnetic Performance in Core-Shell Structural (Sm,Y)Fe-12-Based Permanent Magnets

文献类型：期刊论文

作者Zhao, Lizhong3; Su, Rui3; Wen, Lin3; Li, Wei2; Liu, Xiaolian3; Zhang, Zhenhua3; Zhao, Rongzhi3; Han, Yuyan1; Zhang, Xuefeng3; Li, Wei4
刊名ADVANCED MATERIALS
出版日期2022-06-07
ISSN号0935-9648
关键词anisotropy field core-shell structures in situ Lorentz TEM spinodal decomposition (Sm Y)Fe (12)-based permanent magnets
DOI10.1002/adma.202203503
通讯作者Zhang, Xuefeng(zhang@hdu.edu.cn) ; Li, Wei(weili@cisri.com.cn)
英文摘要ThMn12-type SmFe12-based permanent magnets have exhibited great potential in advanced magnet motors because of their high temperature stability of magnetic properties. However, the applications could be seriously limited due to the trade-off between phase stability and intrinsic magnetic properties. In this work, an effective solution is demonstrated by constructing the core-shell structure (Sm-rich shell and Y-rich core) via a spontaneous spinodal decomposition process. The anisotropy field for the (Sm0.75Y0.25)(Fe0.8Co0.2)(11.25)Ti-0.75 alloy is mostly optimized to be 9.24 T at room temperature. Such an enhancement is ascribed to the pinning process of domain walls by the magnetic-hardening Sm-rich shell, which is directly observed by in situ Lorentz transmission electron microscopy and reconstructed by micromagnetic simulation. Moreover, the phase stability and saturation magnetization are simultaneously increased, which is attributed to the synergistic effect of Y, Co, and Ti substitutions. More importantly, the high mu M-0(s) value of 1.52 T is comparable to the reported (Sm,Zr)Fe-12-based bulk alloys that contain a larger amount of soft alpha-Fe phases, indicating that this strategy is more promising toward bulk magnets. The present study provides a significant concept for the development of advanced permanent magnets and also has implications for understanding the structural origin of intrinsic magnetic configurations.
WOS关键词MAGNETOCRYSTALLINE ANISOTROPY ; SUBSTITUTION
资助项目National Natural Science Foundation of China[52171175] ; National Natural Science Foundation of China[52101216] ; National Natural Science Foundation of China[U21A2052] ; National Natural Science Foundation of China[U1908220] ; National Natural Science Foundation of China[52101217] ; National Natural Science Foundation of China[51901062] ; National Natural Science Foundation of China[52101219] ; Natural Science Foundation of Zhejiang Province[LY20E010002] ; Natural Science Foundation of Zhejiang Province[2021C01023] ; Natural Science Foundation of Zhejiang Province[2021C01033]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
出版者WILEY-V C H VERLAG GMBH
WOS记录号WOS:000807100800001
资助机构National Natural Science Foundation of China ; Natural Science Foundation of Zhejiang Province
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/131237]  
专题中国科学院合肥物质科学研究院
通讯作者Zhang, Xuefeng; Li, Wei
作者单位1.Chinese Acad Sci, High Magnet Field Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Peoples R China
2.Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China
3.Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Inst Adv Magnet Mat, Hangzhou 310012, Peoples R China
4.Cent Iron & Steel Res Inst, Div Funct Mat, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Lizhong,Su, Rui,Wen, Lin,et al. Intrinsically High Magnetic Performance in Core-Shell Structural (Sm,Y)Fe-12-Based Permanent Magnets[J]. ADVANCED MATERIALS,2022.
APA Zhao, Lizhong.,Su, Rui.,Wen, Lin.,Li, Wei.,Liu, Xiaolian.,...&Li, Wei.(2022).Intrinsically High Magnetic Performance in Core-Shell Structural (Sm,Y)Fe-12-Based Permanent Magnets.ADVANCED MATERIALS.
MLA Zhao, Lizhong,et al."Intrinsically High Magnetic Performance in Core-Shell Structural (Sm,Y)Fe-12-Based Permanent Magnets".ADVANCED MATERIALS (2022).

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。