MEASUREMENT OF SPECIFIC ELECTRICAL CONDUCTIVITY OF Na3AlF6-Al2O3-RE2O3 MELT BY FOUR ELECTRODE METHOD

Chinese Journal of Applied Chemistry ›› 1989, Vol. 0 ›› Issue (5): 67-69.

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MEASUREMENT OF SPECIFIC ELECTRICAL CONDUCTIVITY OF Na₃AlF₆-Al₂O₃-RE₂O₃ MELT BY FOUR ELECTRODE METHOD

Zhao Minshou, Feng Li, Lu Xiangping, Tang Dingxiang

Changchun Institute of Applied Chemistry, Academia Sinica

Received:1988-04-28 Revised:1989-03-11 Published:1989-10-10 Online:1989-10-10

Abstract

Abstract: Four electrode method has beenused in measuring the specific electrical conductivityk of Na₃AlF₆-Al₂O₃-RE₂O₃ melt. It is found.that k is decreased with increasing thecontents of Al₂O₃ and RE₂O₃ in the melt and is increased with temperature. The apparentactiviation energy calculated is 18.84kJ/mol.The effect of the Al₂O₃ content on k is greaterthan that of the RE₂O₃ content.A mathematical model of the specific electrical conductivityof the melt is deduced with an accuracy of 95%.

Key words: Sodium fluroaluminate, Aluminium oxide, Rare earth oxide, Melt, Four electrode method, Conductivity

Zhao Minshou, Feng Li, Lu Xiangping, Tang Dingxiang. MEASUREMENT OF SPECIFIC ELECTRICAL CONDUCTIVITY OF Na₃AlF₆-Al₂O₃-RE₂O₃ MELT BY FOUR ELECTRODE METHOD[J]. Chinese Journal of Applied Chemistry, 1989, 0(5): 67-69.

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MEASUREMENT OF SPECIFIC ELECTRICAL CONDUCTIVITY OF Na₃AlF₆-Al₂O₃-RE₂O₃ MELT BY FOUR ELECTRODE METHOD

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