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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Structural aspect of possible interrelation between fragility (length) of glass forming melts and Poisson's ratio of glasses
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Structural aspect of possible interrelation between fragility (length) of glass forming melts and Poisson's ratio of glasses

机译：玻璃熔体的脆性（长度）与玻璃的泊松比之间可能存在的相互关系的结构方面

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摘要

The analysis of the development of the notion of fragility (length) of glass forming melts and the nature of Poisson's coefficient of glasses is presented for the period from 60s of 20th century, basing on structural relations. It is shown that the most distinct structural correlations have been obtained in the framework of ideas of Zachariasen and Hagg, activation theory of viscous flow, and lattice theory of Mie and Gruneisen. It is shown that the existence of universal correlations between fragility and Poisson's ratio is physically baseless yet. The reason is that the systems under comparison are in frozen and in metastable states and the physical meanings of the properties under consideration are incompatible. The possibility of particular correlations between fragility of glass forming melts and Poisson's ratio is discussed. Such correlations possibly exist within special groups of substances which have related structures. The theory of viscous flow for the transition from glass to metastable liquid is refined in the framework of the elastic continuum theory. (c) 2007 Elsevier B.V. All rights reserved.
机译：根据结构关系，对20世纪60年代以来形成玻璃的熔体的脆性（长度）概念的发展以及玻璃的泊松系数的性质进行了分析。结果表明，在Zachariasen和Hagg的思想，粘性流的激活理论以及Mie和Gruneisen的晶格理论的框架内，已经获得了最明显的结构相关性。结果表明，脆性和泊松比之间的普遍相关性在物理上还没有根据。原因是所比较的系统处于冻结状态且处于亚稳态，并且所考虑的属性的物理含义不兼容。讨论了玻璃成形熔体的脆性与泊松比之间特殊相关的可能性。这种关联可能存在于具有相关结构的特殊物质组中。从玻璃到亚稳态液体转变的粘性流理论在弹性连续理论的框架内得到了完善。 （c）2007 Elsevier B.V.保留所有权利。

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