材料与冶金学报2026，Vol.25Issue(1)：70-76,7.DOI:10.14186/j.cnki.1671-6620.2026.01.009
Φ110 mm圆柱形NiFe2O4基铝电解惰性阳极的制备及腐蚀行为
Preparation and corrosion behavior of Φ110 mm cylindrical NiFe2O4 based inert anode for aluminum electrolysis
摘要
Abstract
Φ110mm cylindrical NiFe2O4 based inert anodes for aluminum electrolysis have been prepared by a two-step sintering method in order to solve the problems of sintering cracking easily and long-time electrolytic corrosion of large size NiFe2O4 based inert anode.The key research focuses on the influence of the preparation process on the macroscopic morphology of the anode material and its long-term electrolytic behavior.The results show that the cracking probability of large inert anodes can be effectively reduced by strictly controlling the cooling mechanism and optimizing the force distribution during the sintering process.The cell voltage is relatively stable during 80 h electrolysis,the anode material possesses good high temperature stability.A stratification phenomenon is observed on the anode surface,consisting of a relatively dense layer of 80 μm thickness and the metal ceramic bulk layer.The mass fractions of anode components Ni,Cu,Fe,and Ti in the electrolytic product aluminum are 0.294％,0.190％,0.526％and 0.057％,respectively.关键词
NiFe2O4基金属陶瓷/铝电解惰性阳极/降温机制/腐蚀行为/相对致密层Key words
NiFe2O4 based cermet/inert anode for aluminum electrolysis/cooling mechanism/corrosion behavior/relatively dense layer分类
矿业与冶金引用本文复制引用
钱映,肖峰,张志刚..Φ110 mm圆柱形NiFe2O4基铝电解惰性阳极的制备及腐蚀行为[J].材料与冶金学报,2026,25(1):70-76,7.基金项目
中央高校基本科研业务专项资金资助项目(N2325007). （N2325007）
