Sodium Activity in Molten Aluminum Measured with a Solid Electrolyte 被引量：1

Sodium Activity in Molten Aluminum Measured with a Solid Electrolyte

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摘要 The sodium activities in aluminium in equilibrium with cryolite-alumina melt and during electrolysis were determined by EMF with Naβ-Al_2O_3 solid electrolyte.With this sodium activities,we calculate the activities of NaF and AIF_3 in the cryolite-alumina melt.The potential difference of discharge be- tween sodium ions and aluminum ions at cathode of Hall-Heroult cell was also obtained from the sodium activity in aluminum. The sodium activities in aluminium in equilibrium with cryolite-alumina melt and during electrolysis were determined by EMF with Naβ-Al_2O_3 solid electrolyte.With this sodium activities,we calculate the activities of NaF and AIF_3 in the cryolite-alumina melt.The potential difference of discharge be- tween sodium ions and aluminum ions at cathode of Hall-Heroult cell was also obtained from the sodium activity in aluminum.

作者 Gang XIE Shanghai Institute of Metallurgy,Academia Sinica,Shanghai,200050,ChinaShiyin SHEN Northeast University of Technology,Shenyang,110006,China

出处《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 1993年第5期388-390,共3页 材料科学技术（英文版）

关键词 ACTIVITY solid electrolyte cryolite-alumina melt activity solid electrolyte cryolite-alumina melt

分类号 TB3-55 [一般工业技术—材料科学与工程]

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