| MEASUREMENT OF ANODIC OVERVOLTAGE BY AMODIFIED CURRENT INTERRUPTION METHOD IN CRYOLITE-ALUMINA MELTS |
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| 作者姓名： | Yang Jianhong Lai Yanqing Xiao Jin Li Jie and Liu Yexiang |
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| 作者单位： | Yang Jianhong，Lai Yanqing，Xiao Jin，Li Jie and Liu Yexiang Department of Nonferrous Metallurgy，Central South University of Technology，Changsha 410083，P. R. China J. Thonstad Nowegian University of Science and Technology，Norway |
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| 摘 要： | １ＩＮＴＲＯＤＵＣＴＩＯＮＩｎｔｈｅｅｌｅｃｔｒｏｌｙｔｉｃｐｒｏｄｕｃｔｉｏｎｏｆａｌｕｍｉｎｉｕｍ，ｔｈｅｃｅｌｃｏｎｓｉｓｔｓｏｆａｃａｒｂｏｎａｎｏｄｅａｎｄａｎａｌｕｍｉｎｉｕｍｍｅｔａｌｃａｔｈｏｄｅ．Ｔｈｅｄｏｍｉｎａｎｔｐｏｔｅｎｔ...
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MEASUREMENT OF ANODIC OVERVOLTAGE BY A MODIFIED CURRENT INTERRUPTION METHOD IN CRYOLITE-ALUMINA MELTS |
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| Yang Jianhong,Lai Yanqing,Xiao Jin,Li Jie and Liu Yexiang.MEASUREMENT OF ANODIC OVERVOLTAGE BY AMODIFIED CURRENT INTERRUPTION METHOD IN CRYOLITE-ALUMINA MELTS[J].Transactions of Nonferrous Metals Society of China,1999,9(1). |
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| Authors: | Yang Jianhong Lai Yanqing Xiao Jin Li Jie Liu Yexiang J Thonstad |
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| Abstract: | Generally, there are reasons to believe that the experimental technique has been inadequate in some works on anodic overvoltage measurements in aluminium electrolysis, therefore, the overvoltage data are not quite correct. Several causes affecting the precision of measurements were analyzed, a cell configuration ( vertical carbon anodes, insulated bottom and inner wall of graphite crucible as cathode) was used for overvoltage studies. An improved current interruption technique was used with current interrupted in less than 2μs and a simulation was applied to the oscillating potential decay curve. |
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| Keywords: | anodic overvoltage current interruption method aluminium electrolysis |
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