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Model calculation of experimentally observed eutectic structures

机译:实验观察到的共晶结构的模型计算

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摘要

A model of directed crystallization is developed that considers the stability of the phase boundary to periodic (temporal and spatial) temperature and concentration perturbations. In the case of instability, i.e., increase in the amplitude of perturbations with time, the dependence of the eutectic structure period on the crystallization rate is determined from the model. A possible shape of the crystallization front and the structure of the solid phase formed are considered qualitatively. The corresponding model calculation of experimentally observed eutectic structures is presented. (C) 2005 Pleiades Publishing, Inc.
机译:建立了定向结晶模型,该模型考虑了相界对周期性(时间和空间)温度和浓度扰动的稳定性。在不稳定的情况下,即,扰动的幅度随时间增加,从模型确定共晶结构周期对结晶速率的依赖性。定性地考虑了结晶前沿的可能形状和所形成的固相的结构。给出了实验观察到的共晶结构的相应模型计算。 (C)2005年Pleiades Publishing,Inc.

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