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density on corrosion of NiFe2O4 based cermet inert anode for aluminum electrolysisTIAN Zhong-liang,ZHANG Teng,WEI Chen-juan,LAI Yan-qing,LI Jie(School of Metallurgy and Environment,Central South University...,and the microstructure of the inert anode tested was also analyzed. The results indicate that with the increase of current density,the factor which is mainly in charge of the corrosion rate of NiFe2O4 based cermet......
anode; NiFe2O4 based cermet; Corrosion resistance; [全文内容正在添加中] ...EFFECT OF Cu-Ni CONTENT ON THE CORROSION RESISTANCE OF (Cu-Ni)/(10NiO-90NiFe2O4) CERMET INERT ANODE FOR ALUMINUM ELECTROLYSIS Y.X. Liu1,Z.L. Tian1,Y.Q. Lai1,J. Li1 (1.School of Metallurgical......
Steady polarization process modelling of noble metal-electrolyte cermet composite electrode LUO Zhi-an(罗志安), XIAO Jian-zhong(肖建中), XIA Feng(夏 风), YANG Yi-fan(杨一凡) State Key Lab of Plastic Forming...; Abstract: Cermet composites containing mixture of noble metal phase and electrolyte phase are the state-of-the-art electrode materials used......
dissolution serve as major corrosion mechanisms. Key words: aluminium electrolysis; inert anode; NiFe2O4 based cermet; electrical conductivity; corrosion resistance based on the content of AlF3. The purpose was to provide feasible conditions of using and reduce the corrosion rate of NiFe2O4 based cermet. 2 Experimental......
Results from 100 h electrolysis testing of NiFe2O4 based cermet as inert anode in aluminum reduction LAI Yan-qing(赖延清), TIAN Zhong-liang(田忠良), LI Jie(李 劼), YE Shao-long(叶绍龙), LI Xin-zheng(李新征... the best results obtained by Alcoa. In previous work, we have tested the NiFe2O4 based cermet and determined the optimum composition in Na3AlF6-Al2O3 melts. In this paper, the operating performance......
conductivity, the cermet containing 5%Ni (mass fraction) behaves best among NiO-NiFe2O4 based cermet anodes studied, and should be further studied. Key words: aluminum electrolysis; inert anode; NiFe2O4.... Compared with metals and oxides, NiFe2O4 based cermet, which seems promising to have the desirable properties of metallic materials as well as those of ceramics, is one of the most promising materials......
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words: NiFe2O4; cermet inert anode; aluminum electrolysis; metallic phase; fracture toughness; thermal shock resistance ... is not apparent, but (85Cu-15Ni)/10NiO- NiFe2O4 cermet shows obvious change with a decrease ratio of about 40%. As ?t is above 200 ℃, the strength of ceramic distinctly falls and decrease ratio of strength......
resistance and electrical conductivity of NiFe2O4 based cermets, and the content of NiO in ceramic phase was determined to be 10%. Though NiFe2O4-based cermet anode containing 17% Cu was chosen and tested... 0 to 20%. Key words: NiFe2O4; NiO; cermet; inert anode; aluminum electrolysis; electrical conductivity; 1 Introduction The application of inert anode......
.[7-8] show that the addition of CaO can improve the mechanical properties of NiFe2O4- based cermet. But the corrosion resistance to the melts has not been studied. In this work, Cu/(NiFe2O4-10NiO.../(NiFe2O4- 10NiO) cermet samples were tested with the paraffin method (ASTM Archimedes method C373-88 (1999))[11]. The impurity contents of samples were analyzed with X-ray fluorescense (XRF) spectroscope......
