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 power. The result shows that the purity of the obtained powder is about 91wt.% at 300K, and the magnetic moment of the Mn atom in MnBi lattice is 4.424 and 4.013 µB at 50 K and 300 K respectively.
Revised: June 5, 2014 |
Published: March 5, 2014
Citation
Cui J., J. Choi, G. Li, E. Polikarpov, J.T. Darsell, M.J. Kramer, and N. Zarkevich, et al. 2014.Development of MnBi permanent magnet: neutron diffraction of MnBi powder.Journal of Applied Physics 115, no. 17:Article No. 17A743.PNNL-SA-98434.doi:10.1063/1.4867230