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Structure and hard magnetic properties of TbCu7-type SmFe8.95-xGa0.26Nbx nitrides
Yan WL; Quan NT; Luo Y; Yu DB; Wang ZL; Wu GY; Zhang K(张坤)
Source PublicationJOURNAL OF RARE EARTHS
2018-02-01
Volume36Issue:2Pages:165-169
ISSN1002-0721
Abstract

Nanocrystalline SmFe8.95-xGa0.26NbxN delta (x = 0, 0.1, 0.2, 0.3) were prepared using rapid-quenching, annealing and nitriding. The magnetic properties and crystal structures were systematically studied under various wheel velocities to investigate the influence of Nb doping for the compounds. It is found that TbCu7-type structure is able to be obtained even though the wheel velocity is reduced to 20 m/s (x = 0.3). An significant increase (Delta Tc = 70 degrees C) of the Curie temperature is obtained with Nb doping at x = 0.1 due to the lattice expansion revealed by Rietveld analysis. The optimum coercivity with the value H-cj of 810 kA/m is achieved at x = 0.2 in the nitrides, in which a reasonable distribution of grain sizes of both TbCu7-type SmFe9N delta and alpha-Fe can be found. However, an excess of Nb doping may lead to the increase of the weight fraction of alpha-Fe, which in turn deteriorates the magnetic properties. (C) 2018 Published by Elsevier B.V. on behalf of Chinese Society of Rare Earths.

KeywordRapid-quenching SmFe8.95-xGa0.26Nbx alloy TbCu7-type structure Magnetic properties
DOI10.1016/j.jre.2017.11.001
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000425262400009
WOS KeywordSOLIDIFIED SM-FE ; PERMANENT-MAGNETS ; PHASE-FORMATION ; RIBBONS ; ALLOYS
WOS Research AreaChemistry, Applied
WOS SubjectChemistry
CSCD IDCSCD:6188118
Classification二类
Ranking5+
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77877
Collection国家微重力实验室
Affiliation1.Gen Res Inst Nonferrous Met, Natl Engn Res Ctr Rare Earth Mat, Beijing 100088, Peoples R China
2.Grirem Adv Mat Co Ltd, Beijing 100088, Peoples R China
3.Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Key Lab Micrograv, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Yan WL,Quan NT,Luo Y,et al. Structure and hard magnetic properties of TbCu7-type SmFe8.95-xGa0.26Nbx nitrides[J]. JOURNAL OF RARE EARTHS,2018,36(2):165-169.
APA Yan WL.,Quan NT.,Luo Y.,Yu DB.,Wang ZL.,...&Zhang K.(2018).Structure and hard magnetic properties of TbCu7-type SmFe8.95-xGa0.26Nbx nitrides.JOURNAL OF RARE EARTHS,36(2),165-169.
MLA Yan WL,et al."Structure and hard magnetic properties of TbCu7-type SmFe8.95-xGa0.26Nbx nitrides".JOURNAL OF RARE EARTHS 36.2(2018):165-169.
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