Development of MnBi permanent magnet: Neutron diffraction of MnBi powder

被引：29

作者：

Cui, J. ^{[1
]}

Choi, J. P. ^{[1
]}

Li, G. ^{[1
]}

Polikarpov, E. ^{[1
]}

Darsell, J. ^{[1
]}

Kramer, M. J. ^{[2
]}

Zarkevich, N. A. ^{[2
]}

Wang, L. L. ^{[2
]}

Johnson, D. D. ^{[2
]}

Marinescu, M. ^{[3
]}

Huang, Q. Z. ^{[4
]}

Wu, H. ^{[4
]}

Vuong, N. V. ^{[5
]}

Liu, J. P. ^{[5
]}

机构：

[1] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA

[2] Ames Lab, Mat Sci & Engn Div, Ames, IA 50011 USA

[3] Electron Energy Corp, Landisville, PA 17538 USA

[4] NIST, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA

[5] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2014年 / 115卷 / 17期

关键词：

INTERMETALLIC COMPOUND; RAPID SOLIDIFICATION; PHASE;

D O I：

10.1063/1.4867230

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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.

引用

页数：3

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