Effect of metallic phase species on the corrosion resistance of 17M/(10NiO-NiFe2O4) cermet inert anode of aluminum electrolysis

被引：9

作者：

Lai, Yan-qing ^{[1
]}

Li, Xin-zheng ^{[1
]}

Li, Jie ^{[1
]}

Tian, Zhong-liang ^{[1
]}

Zhang, Gang ^{[1
]}

Liu, Ye-xiang ^{[1
]}

机构：

[1] Cent S Univ, Sch Met Sci & Engn, Changsha 410083, Peoples R China

来源：

JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY | 2006年 / 13卷 / 03期

关键词：

inert anode; NiFe2O4; based cermet; metallic phase species; corrosion resistance;

D O I：

10.1007/s11771-006-0128-z

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

NiFe2O4-based cermet inert anodes with metallic phase compositions of Cu, Ni and 85Cu15Ni were prepared by cold pressing- sintering. Their corrosion resistance was also investigated in Na3AlF6-Al2O3 melts. The results show that the metallic phase species in cermets have no effect on the concentration of impurities in bath during electrolysis, the total steady-state concentration of impurities is almost the same, i.e. between 4.12 x 10(-4) -4.80 X 10(-4). There exists metal preferential corrosion for the cermet inert anode with metal Ni as metallic phase. For NiFe2O4-based cermets, the cermet with metal Cu as metallic phase exhibits better corrosion resistance than the others.

引用

页码：214 / 218

页数：5

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