Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2014, Vol. 25 ›› Issue (6): 060602 doi: 10.13538/j.1001-8042/nst.25.060602

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles    

The performance of Pt/air oxygen sensors in stagnant Pb-Bi eutectic at high temperatures

WANG Yan-Qing1,2, HUANG Qun-Ying1,2,WU Bin2,ZHANG Min1,2,WU Xin 2,GAO Sheng2   

  1. 1University of Science and Technology of China, Hefei 230027, China
    2Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei 230031, China
  • Contact: WU Bin E-mail:bin.wu1@fds.org.cn
  • Supported by:

    Supported by the National Nature Science Foundation of China (No.
    51301163) and the Important Direction Program of Chinese Academy of
    Sciences (No. XDA03040200)

WANG Yan-Qing, HUANG Qun-Ying, WU Bin, ZHANG Min, WU Xin, GAO Sheng. The performance of Pt/air oxygen sensors in stagnant Pb-Bi eutectic at high temperatures.Nuclear Science and Techniques, 2014, 25(6): 060602     doi: 10.13538/j.1001-8042/nst.25.060602

Abstract:

Oxygen control technology is a critical issue for compatibility of candidate structural materials with liquid
lead-bismuth eutectic (LBE) in accelerator driven systems. Performances of a self-developed Pt/air sensor and
another one from Karlsruher Institute of Technology (KIT) were tested in stagnant oxygen-saturated liquid LBE.
Calibrations showed that the trend and values of corrected electromotive force (EMF) of the self-developed
sensor, with a bias voltage of 20 mV, were consistent with theoretical results above 425 °C, and similar results
were obtained in cross-calibration test with EMF value of KIT sensor as reference. In stability test at 450°C
for 100 hours, the KIT sensor performed better than the self-developed one, which showed signal fluctuations.
Both sensors exhibited quick response to temperature variations in the responsiveness test.

Key words: Lead-bismuth eutectic, Oxygen sensor, Calibration, Electromotive force