Effect of metallic phase species on the corrosion resistance of 17M/(10NiO- NiFe2O4) cermet inert anode of aluminum electrolysis①
来源期刊：中南大学学报(英文版)2006年第3期
论文作者：赖延清 李新征 李劼 田忠良 张刚 刘业翔
文章页码：214 - 218
Key words：inert anode; NiFe2O4 based cermet; metallic phase species;corrosion resistance
Abstract: 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 4.12×10-4-4.80×10-4. 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.
基金信息：the National Basic Research Program of China
