两种晶体成核理论研究概述

Research Description of Two Kinds of Nucleation of Crystals Theorys

析晶源于成核,成核对晶体结构和尺寸分布起决定性的作用。因此,理解成核的基本原理对控制其性质至关重要。经典成核理论已广泛应用于溶液析晶。近年来一些研究者发现理论预测和实验结果之间存在许多差异,表明固体成核不是沿着经典路线而是沿着更复杂的路线进行的。本文主要介绍经典理论及其缺点,并对新理论做简单概述。

Crystallization is the result of nucleation. crystal structure and size distribution. Therefore, Nucleation plays a decisive role in determining the understanding the fundamentals of nucleation is crucial to achieve control over these properties. Classical nucleation theory have been widely applied to solution crystallization. However, a number of differences between theoretical predictions and experimental results suggest that nucleation of solids from solution does not proceed via the classical pathway but follows more complex routes. In this account, we discuss the classical nucleation theory and its shortcomings and review studies contributing to the development of the modern two--step model.