Anisotropic single-variant of (Mn54Al46)(97)C-3

作者:Zhang, Chi; Zhang, Tianli*; Wang, Jingmin*; Zhao, Shuang; Wu, Yuye; Jiang, Chengbao
来源:Scripta Materialia, 2018, 143: 72-76.
DOI:10.1016/j.scriptamat.2017.09.008

摘要

The Mn-Al permanent magnet is considered as a candidate to fill the gap between the best ferrite and Nd-Fe-B magnets. Anisotropy is hard to be obtained due to the formation of randomly oriented multi-variants of the ferromagnetic T-phase. In this work, an anisotropic single-variant is achieved through constrained martensitic transformation of the (Mn54Al46)(97)C-3 single crystal, which is based on the principle of magnetoelastic energy. This work guides a new approach for developing anisotropic Mn-Al permanent magnets.