One step preparation of pure š¯¯‰-MnAl phase with high magnetization using strip casting method
Zhuyin Shao,
Hui Zhao,
Jiling Zeng,
Yinfeng Zhang,
Wenyun Yang,
Youfang Lai,
Shuai Guo,
Honglin Du,
Changsheng Wang,
Yingchang Yang,
Jinbo Yang
Affiliations
Zhuyin Shao
State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, Peopleā€™s Republic of China
Hui Zhao
State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, Peopleā€™s Republic of China
Jiling Zeng
Rare Earth Magnetic Materials Laboratory, Chinese Academy of Sciences, Ningbo Institute of Materials Technology and Engineering, Ningbo, Zhejiang 315201, Peopleā€™s Republic of China
Yinfeng Zhang
State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, Peopleā€™s Republic of China
Wenyun Yang
State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, Peopleā€™s Republic of China
Youfang Lai
State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, Peopleā€™s Republic of China
Shuai Guo
Rare Earth Magnetic Materials Laboratory, Chinese Academy of Sciences, Ningbo Institute of Materials Technology and Engineering, Ningbo, Zhejiang 315201, Peopleā€™s Republic of China
Honglin Du
State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, Peopleā€™s Republic of China
Changsheng Wang
State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, Peopleā€™s Republic of China
Yingchang Yang
State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, Peopleā€™s Republic of China
Jinbo Yang
State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, Peopleā€™s Republic of China
Ferromagnetic phase of Mn-Al exhibits great potential in the rare-earth free permanent magnetic materials due to its high magnetocrystalline anisotropy, high magnetization, high Curie temperature and low cost. In this work, the strip casting technique was applied to prepare MnAl magnetic phase. X-ray diffraction and energy dispersive X-ray analyses indicate that the as-prepared Mn54Al46 strip sample consists of pure Ļ„-MnAl magnetic phase. It is found that the composition of Mn54Al46 is suitable to prepare Ļ„-MnAl phase during the strip casting process. The Mn54Al46 strip sample synthesized through the strip casting exhibits a fairly high magnetization of 114 emu/g under a field of 5 T, while the coercivity of iHc = 2.8 kOe, magnetization of M5T = 63.9 emu/g at room temperature can be obtained for Mn54Al46 powder sample. This preparation method can produce a large amount of Ļ„-phase MnAl alloy and promote mass industrialized production.
