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首页> 外文期刊>Philosophical Magazine Letters >In one step from KCl to YBa_2Cu_3O_7 crystal growth: understanding of dendritic morphology in crystals
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In one step from KCl to YBa_2Cu_3O_7 crystal growth: understanding of dendritic morphology in crystals

机译:从KCl到YBa_2Cu_3O_7晶体生长的一步:了解晶体中的树突形态

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摘要

A dendritic morphology of crystals is often encountered in nature and seems to be a universal structure for systems grown from supersaturated solutions such as KCl or NaCl. The observation of similar dendrites in bulk superconducting YBa2Cu3O7 covalent material leads us to correlate the cases. From a simple new kinetics mechanism, the understanding of such a crystal-growth peculiarity is discussed. The kinetic mechanism condition for the occurrence of dendritic shapes of growing crystals from multiphase systems is given through a relationship between the velocity of the growth front and classical thermodynamical quantities. Some simulated systems illustrate the observed features.
机译:晶体的树突形态在自然界经常遇到,并且似乎是由过饱和溶液(如KCl或NaCl)生长的系统的通用结构。在块状超导YBa2Cu3O7共价材料中类似树枝状晶体的观察使我们将情况关联起来。从一个简单的新的动力学机制,讨论了对这种晶体生长特性的理解。通过生长前沿速度与经典热力学量之间的关系,给出了从多相系统中生长出晶体的树枝状形状的动力学机理条件。一些模拟系统说明了观察到的特征。

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