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Influences of Na_2O and K_20 Additions on Electrical Conductivity of CaO-SiO_2(Al_2O_3) Melts

机译:Na_2O和K_20的添加对CaO-SiO_2(Al_2O_3)熔体电导率的影响

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摘要

The present study investigated the influences of Na_2O and K_2O on the electrical conductivity of CaO-SiO_2-(Al_2O_3) melts by the four electrode method. From the experimental results, it was found that the temperature dependence of electrical conductivity obeys the Arrhenius law. As adding Na_2O or K_2O to CaO-SiO_2-(K_2O) melts, electrical conductivity monotonously decreases. Meanwhile, Na_2O bearing melt always has a larger value of electrical conductivity than K2O bearing melt when the compositions are the same. By substituting K_2O for Na_2O, the mixed alkali effect occurs that electrical conductivity first decreases and then increases with the substitution amount of K_2O. Furthermore, the mixed alkali effect is more evident for melts with Al_2O_3 than that without Al_2O_3.
机译:通过四电极法研究了Na_2O和K_2O对CaO-SiO_2-(Al_2O_3)熔体电导率的影响。从实验结果发现,电导率的温度依赖性服从阿伦尼乌斯定律。当向CaO-SiO_2-(K_2O)中添加Na_2O或K_2O时,电导率单调降低。同时,当组成相同时,含Na 2 O的熔体总是比含K 2 O的熔体具有更大的电导率值。通过用K_2O代替Na_2O,会产生混合碱效应,即电导率先降低,然后随K_2O的取代量增加。此外,具有Al_2O_3的熔体的混合碱效应比没有Al_2O_3的熔体的混合碱效应更明显。

著录项

  • 来源
    《ISIJ international》 |2017年第12期|2091-2096|共6页
  • 作者单位

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083 China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083 China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083 China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    electrical conductivity; arrhenius law; mixed alkali effect;

    机译:电导率阿累尼乌斯定律;混合碱效应;
  • 入库时间 2022-08-17 23:58:01

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