【摘要】 从晶格势能曲线的特点出发,根据晶体拉伸断裂时的理论条件,计算了NaCl-型晶体拉伸断裂时的离子间距γi。发现拉伸断裂时的离子间距γi与从等压态方程计算得到的晶体熔化时的离子间距γm之间存在一个经验关系式,即γm=(0.838±0.013)γm。利用此简单的关系式可以预测未知晶体的熔化温度。更多还原

【Abstract】 Interionic separations γi at the tensile fracture of NaCl-type ionic crystals have been calculated on the bases of the characteristic of the lattice potential energy curve, and compared with the values of ion spacing γi determined at melting temperature with the help of the isobaric equation of state. It has been found that there is an empirical relationship between the interionic separations at fusion and at tensile fracture of NaCl-structure ionic crystals, viz.γm=(0.838±0.013)γi.Using this simple relationship, the crystal melting temperature is predicted.更多还原