Coercivity enhancement and microstructural optimization in diffusion-processed Ce-Nd-Fe-B-based films

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	Coercivity enhancement and microstructural optimization in diffusion-processed Ce-Nd-Fe-B-based films
	Cui, WB; Zhang, TB; Zhou, XQ; Wang, Q; Zhao, XG; Liu, W; Zhang, ZD; Liu, W (reprint author), IMR, Shenyang Natl Lab SYNL Mat Sci, Shenyang 110016, Liaoning, Peoples R China.; Cui, WB (reprint author), Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Liaoning, Peoples R China.
刊名	THIN SOLID FILMS
	2018
卷号	645 页码:1-4
关键词	Magnetic-properties Substitution Alloy
ISSN号	0040-6090
英文摘要	Magnetic properties as well as microstructural evolution were firstly studied in Cr(20 nm)/Ce13Fe79B8(100 nm)/Cr(20 nm) benchmark film and the film diffusion-processed with Ce70Cu30(11 nm), Nd(11 nm) and Nd70Cu30(11 nm) alloy layer. The coercivities were still as low as 0.6 T with poor squareness even after diffusion process. By Nd substitution for Ce in Ce-13 - xNdxFe79B8 magnetic layer, squareness was greatly improved. The coercivity was tunable between 0.6 T and 2.34 T and maximum energy product was ranged from 83.4 kJ/m(3) to 204.6 kJ/m(3) depending on the Nd composition in Cr(20 nm)/ Ce13 - xNdxFe79B8(100 nm)/Nd(11 nm)/Cr (20 nm) (x = 3, 6, 9) films. Transmission electron microscopy observation showed the columnar 2:14:1 phase grains with typical core/shell microstructure and rare-earth-rich grain boundaries. Our results demonstrated the promising commercialization potential of Ce-Fe-B based magnets with performance between ferrites and Nd-Fe-B magnets.; Magnetic properties as well as microstructural evolution were firstly studied in Cr(20 nm)/Ce13Fe79B8(100 nm)/Cr(20 nm) benchmark film and the film diffusion-processed with Ce70Cu30(11 nm), Nd(11 nm) and Nd70Cu30(11 nm) alloy layer. The coercivities were still as low as 0.6 T with poor squareness even after diffusion process. By Nd substitution for Ce in Ce-13 - xNdxFe79B8 magnetic layer, squareness was greatly improved. The coercivity was tunable between 0.6 T and 2.34 T and maximum energy product was ranged from 83.4 kJ/m(3) to 204.6 kJ/m(3) depending on the Nd composition in Cr(20 nm)/ Ce13 - xNdxFe79B8(100 nm)/Nd(11 nm)/Cr (20 nm) (x = 3, 6, 9) films. Transmission electron microscopy observation showed the columnar 2:14:1 phase grains with typical core/shell microstructure and rare-earth-rich grain boundaries. Our results demonstrated the promising commercialization potential of Ce-Fe-B based magnets with performance between ferrites and Nd-Fe-B magnets.
学科主题	Materials Science, Multidisciplinary ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
语种	英语
资助机构	National Natural Science Foundation of China [51501033, 51590883]; National Key Research and Development Program of China [2016YFB0700901]; National Natural Science Funds for Distinguished Young Scholar [51425401]; Fundamental Research Funds for the Central Universities [140901001]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79617]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, W (reprint author), IMR, Shenyang Natl Lab SYNL Mat Sci, Shenyang 110016, Liaoning, Peoples R China.; Cui, WB (reprint author), Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Cui, WB,Zhang, TB,Zhou, XQ,et al. Coercivity enhancement and microstructural optimization in diffusion-processed Ce-Nd-Fe-B-based films[J]. THIN SOLID FILMS,2018,645:1-4.
APA	Cui, WB.,Zhang, TB.,Zhou, XQ.,Wang, Q.,Zhao, XG.,...&Cui, WB .(2018).Coercivity enhancement and microstructural optimization in diffusion-processed Ce-Nd-Fe-B-based films.THIN SOLID FILMS,645,1-4.
MLA	Cui, WB,et al."Coercivity enhancement and microstructural optimization in diffusion-processed Ce-Nd-Fe-B-based films".THIN SOLID FILMS 645(2018):1-4.