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首页> 外文期刊>Philosophical Magazine Letters >Simple kinetic models to explain the change in dislocation activity of crystals during a growth process
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Simple kinetic models to explain the change in dislocation activity of crystals during a growth process

机译：简单的动力学模型可解释生长过程中晶体位错活性的变化

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摘要

Kinetic models are proposed from the concepts of the Burton-Cabrera-Frank (BCF) theory to explain the change in dislocation activity in crystals during their growth in the diffusion or in the kinetic regime. It is assumed that the change in dislocation activity decreases with time (i.e. there is a changing supersaturation), following first-order kinetics irrespective of the limiting conditions. The proposed models are very simple to use, and for the first time, incorporate a parameter to explain the change in dislocation activity during crystal growth. They have the advantage of being able to estimate the kinetic constant of the growth process and the rate of change in dislocation activity simultaneously.
机译：从Burton-Cabrera-Frank（BCF）理论的概念提出了动力学模型，以解释晶体在扩散或动力学过程中生长过程中位错活性的变化。假定位错活性的变化随时间减小（即，过饱和度发生变化），而遵循一级动力学，而与限制条件无关。所提出的模型非常易于使用，并且首次引入了一个参数来解释晶体生长过程中位错活性的变化。它们具有能够同时估计生长过程的动力学常数和位错活性变化率的优点。

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