Nonmagnetic phase assisted low temperature phase MnBi bulk magnetic materials, i.e., MnBi/NaCl and MnBi/C magnets, were fabricated by hot pressing mixtures of MnBi and NaCl or C powders. The effects of nonmagnetic NaCl or C on the magnetic and physical properties of the MnBi bulks were investigated in detail. Identifications of phase stability and decomposition rate during the mixing and hot pressing processes were analyzed using the Rietveld refinement method. It was found that the coercivities ( H subc/sub) of the bulk magnets significantly increase with increasing content of NaCl or C: H subc/sub of the MnBi bulks with NaCl of 5 wt. % and C of 5 wt. % reach 9041 Oe and 7054 Oe, respectively, which are higher than the pure MnBi bulk of 6272 Oe. This means that the addition of a small amount of NaCl and C in the MnBi bulks could be one of the promising routes to enhance their magnetic properties.
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机译：非磁性相辅助低温相MnBi散装磁性材料，即MnBi / NaCl和MnBi / C磁体，通过MnBi和NaCl或C粉末的热压混合物制造。还详细研究了非磁性NaCl或C对MnBi块块的磁性和物理性质的影响。使用RIETVELD改进方法分析混合和热压过程中相位稳定性和分解速率的标识。发现散装磁体的凝固性（H c ）随着NaCl或C：H C 的含量增加，NaCl的NaCl含量为5wt。 ％和c为5 wt。 ％达到9041 OE和7054 OE，其高于6272 OE的纯MnBi体积。这意味着在MNBI块中添加少量NaCl和C可以是有前途的路线之一，以提高它们的磁性。
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