Jialin Sun, Congjin Jin, Liansheng Li, and Yanruo Hong, A Novel Electrochemical Oxygen Sensor for Determination of Ultra-low Oxygen Contents in Molten Metal, J. Univ. Sci. Technol. Beijing, 8(2001), No. 2, pp. 137-140.
Cite this article as:
Jialin Sun, Congjin Jin, Liansheng Li, and Yanruo Hong, A Novel Electrochemical Oxygen Sensor for Determination of Ultra-low Oxygen Contents in Molten Metal, J. Univ. Sci. Technol. Beijing, 8(2001), No. 2, pp. 137-140.
Jialin Sun, Congjin Jin, Liansheng Li, and Yanruo Hong, A Novel Electrochemical Oxygen Sensor for Determination of Ultra-low Oxygen Contents in Molten Metal, J. Univ. Sci. Technol. Beijing, 8(2001), No. 2, pp. 137-140.
Citation:
Jialin Sun, Congjin Jin, Liansheng Li, and Yanruo Hong, A Novel Electrochemical Oxygen Sensor for Determination of Ultra-low Oxygen Contents in Molten Metal, J. Univ. Sci. Technol. Beijing, 8(2001), No. 2, pp. 137-140.
National Laboratory on Solid Electrolytes and Metallurgical Testing Techniques, University of Science and Technology Beijing, Beijing 100083, China
中文摘要
A novel electrochemical oxygen sensor has been developed by using Laβ-Al2O3 as solid electrolyte and Cr+Cr2O3 as reference electrode. The sensor not only can be used as normal oxygen sensor but also as an ultra-low oxygen sensor. Especially, it is very sensitive to measure ultra-low oxygen in molten metal. For estimating the accuracy of Laβ-Al2O3 oxygen sensor, two series of oxygen activities in molten iron at different oxygen contents and different temperature were measured by both Laβ-Al2O3 oxygen sensor and ZrO2 oxygen sensor. The theoretical values of oxygen activities in molten iron (3.30%C, in mass fraction) at 1723K and 1745K were also evaluated for comparing the measuring results of two sensors. At last, the error of measurement for Laβ-Al2O3 oxygen sensor was discussed too.
A novel electrochemical oxygen sensor has been developed by using Laβ-Al2O3 as solid electrolyte and Cr+Cr2O3 as reference electrode. The sensor not only can be used as normal oxygen sensor but also as an ultra-low oxygen sensor. Especially, it is very sensitive to measure ultra-low oxygen in molten metal. For estimating the accuracy of Laβ-Al2O3 oxygen sensor, two series of oxygen activities in molten iron at different oxygen contents and different temperature were measured by both Laβ-Al2O3 oxygen sensor and ZrO2 oxygen sensor. The theoretical values of oxygen activities in molten iron (3.30%C, in mass fraction) at 1723K and 1745K were also evaluated for comparing the measuring results of two sensors. At last, the error of measurement for Laβ-Al2O3 oxygen sensor was discussed too.
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