[3J05-09] Pressure Vessel Materials

[3J08] Performance of Oxygen Sensors with Solid Fe/Fe₃O₄ and Liquid Bi/Bi₂O₃ Reference Electrode in Liquid LBE

*Pribadi Mumpuni Adhi¹, Masatoshi Kondo², Minoru Takahashi² (1. Department of Nuclear Engineering, Tokyo Institute of Technology, 2. Laboratory for Advanced Nuclear Energy, Tokyo Institute of Technology)

Keywords:Solid electrolyte sensor, Lead-bismuth eutectic, Liquid reference electrode, Solid reference electrode

Performance of the oxygen sensors with solid and liquid type reference electrode (RE) were investigated in the liquid LBE. The oxygen potentials in the LBE were made equilibrium with the formation potentials of PbO and Fe₃O₄ at 450°-600°C. The stabilization time to an equilibrium condition of the RE of solid type RE was shorter than liquid type RE and both of the sensors perfomed well in the liquid LBE.