摘要
为强化电迁移技术的效果,在金属液两端施加恒定电场的同时施加了一个与电流方向平行的稳衡磁场,考察了在磁场作用下BiMn合金中MnBi相的电迁移情况。实验结果表明,在磁场的作用下,MnBi相可以在10A/cm2的电流密度下向阴极发生迁移;当施加的电流密度一定时,MnBi相的偏移率随着磁感应强度的增大而增大,且存在一个临界值;当磁感应强度一定时,只有当电流密度达到一定的值时才能使析出相稳定迁移。
To improve the effect of electrotransport technique, a parallel magnetic field was applied to the electrotransport system, and the migration of MnBi phase in BiMn alloy was investigated. The results show that under the influence of magnetic field, MnBi phase can migrate toward to the cathode with only 10 A/cm^2 current density; the ratio of migrated MnBi phase increases with increasing magnetic flux density, and there is a critical value, under which the ratio of MnBi phase excursion would increase remarkably; fixing the magnetic flux density, the precipitated phase can migrate steadily when current density is above a critical value.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2006年第4期728-733,共6页
The Chinese Journal of Nonferrous Metals
基金
上海市科委启明星跟踪计划资助项目(04qmh1412)
教育部优秀博士学位论文作者基金资助项目(200235)
关键词
Bi—Mn合金
磁场
电场
相颗粒
电迁移
Bi-Mn alloy
magnetic field
electric field
phase particle
electrotransport
