论文标题
表面自扩散系数在结晶的分子玻璃中的温度依赖关系的比例关系
Scaling Relations for Temperature Dependences of the Surface Self-Diffusion Coefficient in Crystallized Molecular Glasses
论文作者
论文摘要
结晶动力学具有通用的特征，并且与结晶系统的类型无关。使用缩放关系来描述表面自扩散系数$ d_s $的温度依赖性（这是结晶动力学的关键特征之一）的可能性，已在应用于各种结晶的分子玻璃中。已经表明，表面自扩散系数$ d_s $作为无量纲温度的函数由功率定律复制，并针对所有考虑的系统进行了普遍缩放。实验数据的分析表明，结晶动力学特征，脆弱索引和液体玻璃形成能力的标准之间存在相关性。已经表明，这种相关性可以在广义的爱因斯坦 - 斯托克斯关系中获得。
Crystallization kinetics has features that are universal and independent of the type of crystallized system. The possibility of using scaling relations to describe the temperature dependences of the surface self-diffusion coefficient $D_s$, which is one of the key characteristics of crystallization kinetics, has been demonstrated in application to various crystallized molecular glasses. It has been shown that the surface self-diffusion coefficient $D_s$ as a function of the dimensionless temperature is reproduced by a power law and is universally scaled for all considered systems. The analysis of experimental data has revealed a correlation between the crystallization kinetic characteristics, index of fragility, and criterion of the glass-forming ability of a liquid. It has been shown that this correlation can be obtained within the generalized Einstein-Stokes relation.
