Electrochemical Method for Controlling the Interfacial Oxygen in Molten Fe with ZrO_2 Based Solid Electrolyte
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概要
- 論文の詳細を見る
The control of the interfacial oxygen concentration in molten steel by an electrochemical method using ZrO2 based solid electrolyte was suggested in this study. Oxygen ions were transferred through the solid electrolyte by varying the chemical potential difference and applying an external electric potential between the cathode and the anode. By applying an external electric potential, the oxygen concentration was controlled below 3 ppm at the molten Fe/ZrO2 interface. The electrochemical reaction rate of oxygen removal was found to be faster than the estimated diffusion of oxygen through the boundary layer of molten steel. Thus, the slow diffusion of oxygen through the boundary layer creates a steady state oxygen concentration profile, where an oxygen depleted layer at the molten Fe/ZrO2 interface is present. The oxygen concentration profile in the boundary layer was confirmed using the Glow Discharge Spectroscopy.In this study, the oxygen concentration at the interface could be controlled using an electrochemical method of ZrO2 based solid electrolyte and achieve a steady state at the interface within the liquid phase boundary layer.
- 社団法人 日本鉄鋼協会の論文
- 2009-12-15
著者
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Park Joo
School of Materials Science and Engineering, University of Ulsan
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Lee Young
Technical Research Laboratories, POSCO
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Min Dong
Department of Metallurgical Engineering, Yonsei University
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Min D
Yonsei Univ. Seoul Kor
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Min Dong
Department Of Metallurgical Engineering Yonsei University
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KIM Wook
Department of Biology, Dankook University
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Park Joo
School Of Materials Science And Engineering University Of Ulsan
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Lee Young
Ironmaking Research Group Technical Research Laboratories Posco
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Kim Wook
Dep. Of Materials Sci. And Engineering Yonsei Univ.
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Park Joo
School Of Materials Sci. And Engineering Univ. Of Ulsan
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Min Dong
Department Of Materials Science And Engineering Yonsei University
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MIN Dong
Department of Advanced Materials Engineering, Yonsei University
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