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Growth of single crystals of quasicrystalline phases

机译:准晶相单晶的生长

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摘要

To study the mechanical and physical properties of quasicrystals, single-crystal samples of large size (several centimeters) are necessary. However, obtainment of such single crystals meets a number of difficulties related to the peritectic character of melting of quasicrystalline compounds, high volatility and oxidizability of the initial components, low growth rate in aperiodic directions, and metastability of the most quasicrystalline structures. In this study, criteria for stable growth of quasicrystalline phases have been determined. The growth mechanisms of icosahedral and decahedral single crystals are described and experimental techniques of single-crystal growth are reviewed.
机译:为了研究准晶体的机械和物理特性,需要大尺寸(几厘米)的单晶样品。然而,获得这种单晶遇到了许多困难,这些困难与准晶体化合物的熔化的包晶特征,初始组分的高挥发性和可氧化性,在非周期性方向上的低生长速率以及大多数准晶体结构的亚稳定性有关。在这项研究中,确定了准晶相稳定生长的标准。描述了二十面体和十面体单晶的生长机理,并综述了单晶生长的实验技术。

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