Intrinsically High Magnetic Performance in Core-Shell Structural (Sm,Y)Fe-12-Based Permanent Magnets

doi:10.1002/adma.202203503

HFCAS OpenIR

	Intrinsically High Magnetic Performance in Core-Shell Structural (Sm,Y)Fe-12-Based Permanent Magnets
	Zhao, Lizhong 1; Su, Rui 1; Wen, Lin 1; Li, Wei 2; Liu, Xiaolian 1; Zhang, Zhenhua 1; Zhao, Rongzhi 1; Han, Yuyan3 ; Zhang, Xuefeng 1; Li, Wei 4
	2022-06-07
发表期刊	ADVANCED MATERIALS
ISSN	0935-9648
通讯作者	Zhang, Xuefeng(zhang@hdu.edu.cn) ; Li, Wei(weili@cisri.com.cn)
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.
关键词	anisotropy field core-shell structures in situ Lorentz TEM spinodal decomposition (Sm Y)Fe (12)-based permanent magnets
DOI	10.1002/adma.202203503
关键词[WOS]	MAGNETOCRYSTALLINE ANISOTROPY ; SUBSTITUTION
收录类别	SCI
语种	英语
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]
项目资助者	National Natural Science Foundation of China ; Natural Science Foundation of Zhejiang Province
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000807100800001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/131238
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.Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Inst Adv Magnet Mat, Hangzhou 310012, Peoples R China 2.Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China 3.Chinese Acad Sci, High Magnet Field Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, 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).