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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.
2018
Source PublicationTHIN SOLID FILMS
ISSN0040-6090
Volume645Pages:1-4
AbstractMagnetic 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.
description.department[cui, weibin ; zhao, xinguo ; liu, wei ; zhang, zhidong] imr, shenyang natl lab synl mat sci, shenyang 110016, liaoning, peoples r china ; [cui, weibin ; zhang, tongbo ; zhou, xiaoqian ; wang, qiang] northeastern univ, key lab electromagnet proc mat, minist educ, shenyang 110819, liaoning, peoples r china ; [cui, weibin ; zhang, tongbo ; zhou, xiaoqian] northeastern univ, dept phys & chem mat, sch mat sci, shenyang 110819, liaoning, peoples r china
KeywordMagnetic-properties Substitution Alloy
Subject AreaMaterials Science, Multidisciplinary ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
Funding OrganizationNational 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]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79617
Collection中国科学院金属研究所
Corresponding AuthorLiu, 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.
Recommended Citation
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.
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