Study on Electrolytic Corrosion Behavior and Mechanism of Nano Toughened Φ100 mm Cylindrical NiFe2O4 Based Inert Anode
Abstract: Nano toughened Φ100 mm cylindrical NiFe2O4 based inert anodes was prepared by powder me-tallurgy two-step sintering method. The electrolytic corrosion behavior and mechanism of NiFe2O4 based inert anodes were investigated by 10 h electrolysis experiment. The results show that the cell voltage keeps relatively stable, which is attributed to the good high temperature stability of nano toughened cylindrical NiFe2O4 based inert anode as well as the adequate high-temperature strength and conductivity of the solid state sintered connection between metal rod and inert anode. The electrolyzed inert anode has not undergone cracking or swelling, showing a suitable thermal shock resistance and corrosion resistance. The corrosion resistance should be enhanced for the purity of product aluminum was 98.02%, where the main impurities were Fe, Ni and Cu. The enhanced grain boundary bonding strength and decreased porosity, derived from the adding of NiFe2O4 nanopowder, can reduce the probability of electrolyte infiltration into the anode inside. As a result, the corrosion resistance of nano toughened NiFe2O4 based inert anodes has been improved effectively.
文章引用: 张志刚 , 徐建荣 , 罗洪杰 , 姚广春 (2015) 纳米增韧Φ100 mm圆柱形NiFe2O4基惰性阳极的电解腐蚀行为研究。 冶金工程， 2， 1-7. doi: 10.12677/MEng.2015.21001
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