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The influence of crystalline anisotropy on the evolution of the crystallization front during directional solidification

机译：定向凝固过程中结晶各向异性对结晶前沿演变的影响

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摘要

The evolution of the crystallization front of transparent crystals of succinonitrile and pivalic acid in the course of directional solidification in the field of a temperature gradient (Bridgman method) is investigated experimentally. The influence of crystalline anisotropy is examined using single crystals of different orientations. Bulk (cylindrical) and planar single crystals of the materials under investigation are studied and compared for the first time. It is established that the crystallographic direction of growth plays an important role and determines the structure of the crystallization front at different stages of its evolution. New manifestations of the dynamic effects responsible for the development of the nonstationary periodic structure are revealed. (C) 2005 Pleiades Publishing, Inc.
机译：实验研究了在温度梯度（Bridgman方法）定向凝固过程中，丁二酸和新戊酸透明晶体结晶前沿的演变。使用不同取向的单晶检查晶体各向异性的影响。首次研究和比较了所研究材料的块状（圆柱形）和平面单晶。可以确定的是，晶体学的生长方向起着重要的作用，并决定了在其演化的不同阶段的结晶前沿的结构。揭示了导致非平稳周期结构发展的动力学效应的新表现。 （C）2005年Pleiades Publishing，Inc.

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