Effects of Si content on structure and soft magnetic properties of Fe(81.3)Si(x)B(17-x)Cu(1.7)nanocrystalline alloys with pre-existing alpha-Fe nanocrystals

doi:10.1007/s10853-020-05404-w

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	Effects of Si content on structure and soft magnetic properties of Fe(81.3)Si(x)B(17-x)Cu(1.7)nanocrystalline alloys with pre-existing alpha-Fe nanocrystals
	Jia, Xingjie ; Zhang, Wei ; Dong, Yaqiang ; He, Aina ; Li, Jiawei ; Li, Run-Wei
刊名	JOURNAL OF MATERIALS SCIENCE
	2020
卷号	56 期号:3 页码:2539-2548
关键词	HIGH B-S FORMING ABILITY CRYSTALLIZATION ANISOTROPIES COERCIVITY DEPENDENCE ELEMENTS ENTROPY
DOI	10.1007/s10853-020-05404-w
英文摘要	The as-spun structure, thermal stability, crystallization structure and soft magnetic properties of Fe81.3SixB17-xCu1.7(x = 0-8) alloys were investigated. The Fe-Si-B-Cu amorphous alloys contain alpha-Fe nanocrystals with a high number density (N-d) in as-spun state and show uniform nanocrystalline structure and typical soft magnetic characteristics after annealing. The rise of Si content from 0 to 4 at% increases theN(d), while the further rise to 8 at% shows an adverse effect. The increasedN(d)enhances competitive growth between the crystals during crystallization process, then refines structure and improves soft magnetic properties of the nanocrystalline alloys. Contrarily, the decreasedN(d)results in coarsened nanostructure and deteriorated magnetic softness. The alloy with Si content of 4 at% contains alpha-Fe crystals with a highN(d)of 2.2 x 10(23) m(-3)in as-spun state and possesses fine alpha-Fe grains with an average size (D) of 14 nm, low coercivity (H-c) of 7.1 A/m, high effective permeability (at 1 kHz) of 16,500 and saturation magnetic flux density of 1.77 T after annealing at 668 K for 60 min. In addition, theH(c)of present Fe-Si-B-Cu nanocrystalline alloys is almost proportional toD(3)due to the high ratio of uniaxial anisotropy to average random anisotropy.
学科主题	Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20427]
专题	2020专题
作者单位	1.Dong, YQ (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, CAS Key Lab Magnet Mat & Devices, Ningbo 315201, Zhejiang, Peoples R China. 2.Dong, YQ (corresponding author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China. 3.Zhang, W (corresponding author), Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Solidificat Control & Digital Preparat Te, Dalian 116024, Peoples R China.
推荐引用方式 GB/T 7714	Jia, Xingjie,Zhang, Wei,Dong, Yaqiang,et al. Effects of Si content on structure and soft magnetic properties of Fe(81.3)Si(x)B(17-x)Cu(1.7)nanocrystalline alloys with pre-existing alpha-Fe nanocrystals[J]. JOURNAL OF MATERIALS SCIENCE,2020,56(3):2539-2548.
APA	Jia, Xingjie,Zhang, Wei,Dong, Yaqiang,He, Aina,Li, Jiawei,&Li, Run-Wei.(2020).Effects of Si content on structure and soft magnetic properties of Fe(81.3)Si(x)B(17-x)Cu(1.7)nanocrystalline alloys with pre-existing alpha-Fe nanocrystals.JOURNAL OF MATERIALS SCIENCE,56(3),2539-2548.
MLA	Jia, Xingjie,et al."Effects of Si content on structure and soft magnetic properties of Fe(81.3)Si(x)B(17-x)Cu(1.7)nanocrystalline alloys with pre-existing alpha-Fe nanocrystals".JOURNAL OF MATERIALS SCIENCE 56.3(2020):2539-2548.