| Effect of Ni content on corrosion behavior of Ni/（10NiO-90NiFe2O4） cermet inert anode |
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| 引用本文： | 田忠良,赖延清,李劼,刘业翔.Effect of Ni content on corrosion behavior of Ni/（10NiO-90NiFe2O4） cermet inert anode[J].中国有色金属学会会刊,2008,18(2):361-365. |
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| 作者姓名： | 田忠良 赖延清 李劼 刘业翔 |
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| 作者单位： | TIAN Zhong-liang（School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China） ;
LAI Yan-qing（School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China） ;
LI Jie（School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China） ;
LIU Ye-xiang（School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China） ; |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | Ni/（10NiO-90NiFe2O4） cermet inert anodes with metal Ni content of 0, 5, 10, 15 and 20 （mass fraction, %） were prepared and their corrosion behavior in Na3AlF6-Al2O3 melts was investigated in laboratory electrolysis tests. The results indicate that the content of metal Ni in anodes has little effect on the steady-state concentration of impurities Ni and Fe in electrolyte and the values range in （114-173）×10^-6 and （287-385）×10^-6, but the content of impurities in the metal aluminum manifolds. There is preferential corrosion for metal Ni in NiO-NiFe2O4 based cermet anodes. Considering the corrosion resistance and electrical conductivity, the cermet containing 5%Ni （mass fraction） behaves best among NiO-NiFe2O4 based cermet anodes studied, and should be further studied.
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| 关 键 词： | 镍 腐蚀行为 金属陶瓷 铝 电解 |
| 收稿时间： | 28 May 2007 |
Effect of Ni content on corrosion behavior of Ni/(10NiO-90NiFe2O4) cermet inert anode |
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| Zhong-liang TIAN, Yan-qing LAI, Jie LI,Ye-xiang LIU.Effect of Ni content on corrosion behavior of Ni/(10NiO-90NiFe2O4) cermet inert anode[J].Transactions of Nonferrous Metals Society of China,2008,18(2):361-365. |
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| Authors: | Zhong-liang TIAN Yan-qing LAI Jie LI Ye-xiang LIU |
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| Affiliation: | School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China |
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| Abstract: | Ni/(10NiO-90NiFe2O4) cermet inert anodes with metal Ni content of 0, 5, 10, 15 and 20 (mass fraction, %) were prepared and their corrosion behavior in Na3AlF6-Al2O3 melts was investigated in laboratory electrolysis tests. The results indicate that the content of metal Ni in anodes has little effect on the steady-state concentration of impurities Ni and Fe in electrolyte and the values range in (114-173)×10-6 and (287-385)×10-6, but the content of impurities in the metal aluminum manifolds. There is preferential corrosion for metal Ni in NiO-NiFe2O4 based cermet anodes. Considering the corrosion resistance and electrical conductivity, the cermet containing 5%Ni (mass fraction) behaves best among NiO-NiFe2O4 based cermet anodes studied, and should be further studied. |
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| Keywords: | aluminum electrolysis inert anode NiFe2O4 based cermet corrosion resistance |
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