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Development of MnBi permanent magnet: Neutron diffraction of MnBi powder

TitleDevelopment of MnBi permanent magnet: Neutron diffraction of MnBi powder
Publication TypeJournal Article
Year of Publication2014
AuthorsCui, J, Choi, JP, Li, G, Polikarpov, E, Darsell, J, Kramer, MJ, Zarkevich, NA, Wang, LL, Johnson, DD, Marinescu, M, Huang, QZ, Wu, H, Vuong, NV, Liu, JP
JournalJournal of Applied Physics
Volume115
Pagination17a743
Date Published05
Type of ArticleArticle
ISBN Number0021-8979
Accession NumberWOS:000335643700117
Keywordsintermetallic compound, phase, rapid solidification
Abstract

MnBi attracts great attention in recent years for its great potential as permanent magnet materials. MnBi phase is difficult to obtain because of the rather drastic peritectic reaction between Mn and Bi. In this paper, we report our effort on synthesizing high purity MnBi compound using conventional powder metallurgical approaches. Neutron diffraction was carried out to investigate the crystal and nuclear structure of the obtained powder. The result shows that the purity of the obtained powder is about 91 wt. % at 300 K, and the magnetic moment of the Mn atom in MnBi lattice is 4.424 and 4.013 mu(B) at 50 K and 300 K, respectively. (C) 2014 AIP Publishing LLC.

DOI10.1063/1.4867230
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