东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2003, Vol. 24 ›› Issue (1): 58-60.DOI: -

• 论著 • 上一篇    下一篇

金属陶瓷基铝电解惰性阳极材料制备及其非极化腐蚀

赵群;高炳亮;王兆文;邱竹贤   

  1. 东北大学材料与冶金学院 ;东北大学材料与冶金学院 ;东北大学材料与冶金学院 ;东北大学材料与冶金学院 辽宁沈阳　110004
  • 收稿日期:2013-06-23 修回日期:2013-06-23 出版日期:2003-01-15 发布日期:2013-06-23
  • 通讯作者: Zhao, Q.
  • 作者简介:-
  • 基金资助:
    国家重点基础研究发展规划项目(199906493);;国家"八六三"高技术计划项目(2001AA335010)·

Preparation and chemical corrosion of behaviour cermet inert anode used in the aluminum smelter

Zhao, Qun (1); Gao, Bing-Liang (1); Wang, Zhao-Wen (1); Qiu, Zhu-Xian (1)   

  1. (1) Sch. of Mat. and Metall., Northeastern Univ., Shenyang 110004, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2003-01-15 Published:2013-06-23
  • Contact: Zhao, Q.
  • About author:-
  • Supported by:
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摘要： 为了搞清NiFe2O4基金属陶瓷惰性阳极的腐蚀机理,对其复杂腐蚀过程的一个方面非极化腐蚀进行了初步探讨·实验中摸索了阳极材料的制备工艺,发现烧结温度对材料性能影响巨大·采用高温氧化增重法对阳极的氧化腐蚀进行研究,发现其腐蚀过程比较平稳,氧化率增重曲线存在若干起伏,预示着新反应的加入,加快了氧化过程的进行·金属陶瓷阳极试样长时间高温熔盐腐蚀实验发现,不同组成的电解质对试样的腐蚀能力相差较大,含MgF2的电解质对试样的腐蚀能力较强,NaCl含量不同的电解质对试样的腐蚀相差较为显著·

关键词: 铝电解, 金属陶瓷, 惰性阳极, 非极化腐蚀, 氧化增重

Abstract: To understand the complicate corrosion mechanism of NiFe2O4 based cermets inert anode in aluminum electrolysis, the chemical corrosion of the cermets was studied. The preparation process of anode was researched in the experiment and the results illustrated that sintering temperature has significant effect on the property of anode. The oxidation erode is stable by measuring the oxidize-weight rising curve, but there exist fluctuate on the curves which means new chemical reaction occurred and results in fast oxidization. While the results of high temperature molten erosion by emerged sample into molten salt for a long period showed that the erosion-resistance capability of sample varied with the composition of electrolyte. The electrolyte including MgF2 has high corrosion effects, which changed with the content of NaCl.

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