东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2006, Vol. 27 ›› Issue (7): 786-789.DOI: -

• 论著 • 上一篇    下一篇

CVCC法测定冰晶石系熔盐电导率的应用研究

王兆文;胡宪伟;高炳亮;石忠宁;   

  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;辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-23 修回日期:2013-06-23 出版日期:2006-07-15 发布日期:2013-06-23
  • 通讯作者: Wang, Z.-W.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50334030)

Application of measuring electrical conductivity of cryolite-based melts by CVCC technique

Wang, Zhao-Wen (1); Hu, Xian-Wei (1); Gao, Bing-Liang (1); Shi, Zhong-Ning (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2006-07-15 Published:2013-06-23
  • Contact: Wang, Z.-W.
  • About author:-
  • Supported by:
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摘要： 通过对标准KCl水溶液电导率的测定,验证了连续变化电导池常数(CVCC)法的可行性;证明了使用该方法测定水溶液或熔盐电导率时,极化电阻带来的实验误差很小,而且实验中不必再进行导线和电极电阻的去除,从而简化了实验步骤.通过对不同Al2O3含量的Na3AlF6-Al2O3熔盐电导率进行测定并与以前研究者的数据进行比较,证明CVCC法测定铝电解质体系以及其他高温熔盐的电导率具有很高的精确度.

关键词: 电导率, 铝电解, 冰晶石体系, CVCC法, 电导池常数

Abstract: The continuously varying cell constant (CVCC) technique was verified to be feasible by measuring the electrical conductivity of standard KC1 solution. It was found that the error due to polarization resistance is very small if using CVCC technique to determine the electrical conductivity of aqueous solutions and molten salts, and no deduction of lead/electrode resistance value from read-out value required, thus simplifying the experimental procedure. The electrical conductivity of Na3AlF6-Al2O3 melts with different Al2O3 contents was measured by CVCC technique and the results were compared with the relevant data in earlier works. It was proved that CVCC technique can measure accurately the electrical conductivity of aluminum electrolyte and other high-temperature molten salts.

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