电解制备纯铁及其RRR_H法研究  

Study of Electrolyzed Pure Iron and RRR_H Method

作　　者：曹为民[1] 印仁和[1] 严惠根[1] 张义炳[2] 戴迎春[3] 

机构地区：[1]上海大学理学院化学系 [2]上海大学理学院物理系,上海200436 [3]华东理工大学国家重点化学工程联合实验室,上海200237

出　　处：《电化学》2003年第3期368-372,共5页Journal of Electrochemistry

基　　金：国家重点化学工程联合实验室资助

摘　　要：以工业废铁屑为原料制备高纯度电解铁 ,纯度可达 99.98%以上 .应用剩余电阻率比(RRRH)法 ,在外加垂直磁场 80 0 0e下分别测定该电解铁在 4 .2K和 2 98K时的电阻率 ,并得出样品对应的剩余电阻率比 (RRRH) .研究表明 :电解铁纯度越高 ,其RRRH 越大 .通过SEM断面形貌观察 。The high purity electrolytic iron was made from scrap iron chips. The purity of electrolyzed pure iron was above 99.98% by chemical analysis. The resistivity was measured at 298 K and at 4.2 K under an applied longitudinal_magnetic field of 800 0 e. The ratio of resistivity at 298 K to that at 4.2 K, The value of residual resistivity ratio (RRR H) roughly depended on the purity of iron. Pure iron electrolyzed on Ti substrate had very compact texture as evident by SEM.

关 键 词：电解制备 纯铁 RRRH法 电解铁 化学分析 电解液 杂质 

分 类 号：TF111.52[冶金工程—冶金物理化学]