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采用锌铁尖晶石材料作为铝电解惰性阳极，考察了这种阳极在rn rnrn熔盐中的腐蚀rn行为，阳极电流密度为0～2.5A/cm2．实验结果表明，锌铁尖晶石材料在阳极极化条件下的NaF-AlF3-Al2O3熔盐中具有很好的耐腐蚀性能．在低电流密度下，阳极材料的腐蚀速度随电流密度的增大而增大，最高的腐蚀速度出现于0.5～0.75A/cm2．此后，腐蚀速度随电流密度的增大而降低．实验证明，高阳极电流密度(＞1.5A/cm2)、熔盐电解质中保持高Al2O3含量和低NaF/AlF3摩尔比，对降低阳极材料的腐蚀速度有利，这也将是惰性阳极应用的重要条件．“,”Zinc ferrite was used as inert anode materials for aluminum electrolysis. The corrosion behaviorof zinc fetrite as investigated under the anodic current density of 0-2.5A/cm2. Experinental results provethat zinc ferite materials is very corrosion resistant to molten NaF-AlF3-Al2O3 under the condition ofanodic polarization. The biggest corrosion rate appears in the range of 0.5 ～0.75A/cn2. The corrosionrate will get down after that peak value. High anodic current density (＞ 1.5 A/cm2 ), high aluminaconcentration and low mole ratio of NaF/AlF3 in the molten salts would be the most important conditionsfor using inert anode.