【摘要】 本文利用固体电解质ZrO₂（+MgO）作为氧离子导体组成浓差电池,测其电动势,求出了熔体中氧化镧活度(a_La2O3)与各因素关系的回归方程。文中还讨论了各因素对a_La2O3的影响,并绘出了氧化镧的等活度曲线图。最后,利用Monte-Carlo方法解定积分求出了 Al₂O₃ 的活度。氧化铝的活度随氧化镧浓度的增加而增大。更多还原

【Abstract】 The MgO- stabilized ZrO₂ solid electrolyte as O^2- ion conductorwas used to set up a concentration cell（Ⅰ）. By EMF measured aregression equation is abtained to calculate the activity of lanthanain relation to several factors such as the concentrations of aluminaand lanthana, cryolite ratio and thermodynamic temperature Withthe effects of these factors on the activity of lanthana discussed itsisogram is plotted. The activity of Al₂O₃ is found by using Monte-Carlo method to solve the definite integration, and it is shown that itincreases with increasing lanthana concentration in the melt （Fig.7）.更多还原