| 四电极法测量Na_3AlF_6-Al_2O_3-RE_2O_3熔体的电导率 |
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| 引用本文： | 赵敏寿,冯力,吕翔平,唐定骧.四电极法测量Na_3AlF_6-Al_2O_3-RE_2O_3熔体的电导率[J].应用化学,1989(5). |
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| 作者姓名： | 赵敏寿 冯力 吕翔平 唐定骧 |
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| 作者单位： | 中国科学院长春应用化学研究所
(赵敏寿，冯力，吕翔平)，中国科学院长春应用化学研究所(唐定骧) |
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| 摘 要： | 为了排除和减小电极与熔体接触面间的阻抗,电极与连接导线的电阻以及石英电导池腐蚀的影响,本文用交流四电极法测量了熔体Na_3Na_3AlF_6-Al_3O_3-RE_2O_3的电导率,其中RE指以Ce为主的混合稀土。 实验装置如图1所示,电极为φ0.8mm的Pt和Pt-Rh丝(其中二根Pt、二根Pt-Rh),中
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| 关 键 词： | 氟铝酸钠 氧化铝 稀土氧化物 熔体 四电极法 电导率 |
MEASUREMENT OF SPECIFIC ELECTRICAL CONDUCTIVITY OF Na_3AlF_6-Al_2O_3-RE_2O_3 MELT BY FOUR ELECTRODE METHOD |
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| Zhao Minshou,Feng Li,Lu Xiangping,Tang Dingxiang Changchun Institute of Applied Chemistry,Academia Sinica.MEASUREMENT OF SPECIFIC ELECTRICAL CONDUCTIVITY OF Na_3AlF_6-Al_2O_3-RE_2O_3 MELT BY FOUR ELECTRODE METHOD[J].Chinese Journal of Applied Chemistry,1989(5). |
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| Authors: | Zhao Minshou Feng Li Lu Xiangping Tang Dingxiang Changchun Institute of Applied Chemistry Academia Sinica |
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| Abstract: | Four electrode method has beenused in measuring the specific electrical conductivityk of Na_3AlF_6 -Al_2O_3-RE_2O_3 melt. It is found.that k is decreased with increasing thecontents of Al_2,O_3 and RE_2O_3 in the melt and is increased with temperature. The apparentactiviation energy calculated is 18.84kJ/mol.The effect of the Al_2O_3 content on k is greaterthan that of the RE_2O_3 content.A mathematical model of the specific electrical conductivityof the melt is deduced with an accuracy of 95%. |
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| Keywords: | Sodium fluroaluminate Aluminium oxide Rare earth oxide Melt Four electrode method Conductivity |
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