Change of U solubility by mole ratios of UO2 crucible/zircaloy-4 melt

The U solubility in the Zircaloy melt including the other investigators' result was investigated in a range of reaction temperatures from 2223K to 2473K and for the mole ratios of UO2 crucible/Zircaloy-4 melt(subsequently abbreviated as UO2/Zry) from 2.4 to 18.2. The U solubility in the melt increased with increasing reaction temperature and with decreasing the mole ratio of UO2/Zry. An empirical correlation was obtained as functions of UO2/Zry mole ratio and reaction temperature including other investigators' results. The experimental results with use of internally heated fuel element simulators were analyzed by the empirical correlation from UO2 crucible experiments