Mechanically Driven Alloying and Magnetic Properties in Immiscible Mn80Bi20 Nanocrystalline Powders

摘要：

　　The paper has described the formation of nanocrystalline Mns0Bi20 powders by mechanical alloying and studied the changes of structure and magnetic properties of the powders during the process of ball milling by using X-ray diffr action and saturation magnetization σs measurements.The solid solubility of bismuth in manganese increases with milling time and tends to a stable value after 80h milling.The σs of Mn80Bi20 increases abruptly with milling time at the early stage and begins to decrease after 15h.At the time of 15h, the σs reaches a maximum, which is about 7Am2/kg.The result shows an interesting information that the antiferromagnetic Mn and the diamagnetic Bi produce ferromagnetic Mn80Bi20 in process of mechanical alloying.

关键词： Structure Magnetic properties Nanocrystalline Immiscible system Mechanical alloying

作者: Min Xu Qun-jiao Wang

作者单位: School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China Key Laboratory for Electromagnetic Processing of Materials (Ministry of Education), Northeastern Uni

会议类型: 国际会议

会议名称: The Eighth China National Conference on Functional Materials and Applications(第八届中国功能材料及其应用学术会议)

会议地点: 哈尔滨

会议语种:英文

页码: 217-220

在线出版日期: 2013-08-23（万方平台首次上网日期，不代表论文的发表时间）