Non-crystalline solids: Glasses and amorphous solids
Non-crystalline solids: Glasses and amorphous solids
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DOI：
10.1016/0022-3093(95)00502-1
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发表时间：
1996-02-01
影响因子：
3.5
通讯作者：
Gupta, PK
中科院分区：
文献类型：
--
作者：
Gupta, PK
Zachariasen的玻璃形成概念已经扩展到合理化不同组合物形成非结晶固体的相对容易性。它示出，非结晶固体可以分为两个结晶上不同的类：玻璃和无定形固体。此外，有人认为，它们在加热时表现不同。基于Zachariasen的概念，玻璃作为一个拓扑无序的网络与短程秩序相当于在相应的晶体，定量结构为基础的定义提出了玻璃和无定形固体。此外，以前的形式主义的基础上的自由度在拓扑无序的网络已被扩展到检查的相对能力的组合物，形成非结晶固体。
Zachariasen's concept of glass formation has seen extended to rationalize the relative ease of different compositions for formation of non-crystalline solids. It is shown that non-crystalline solids can be divided in to two thermodynamically distinct classes: glasses and amorphous solids. Further, it is argued that they behave differently upon heating. Based on Zachariasen's notion of glass as a topologically disordered network with short range order equivalent to that in the corresponding crystal, quantitative structure-based definitions are proposed for glasses and amorphous solids. In addition, a previous formalism based on degrees of freedom in topologically disordered networks has been extended to examine the relative abilities of compositions to form non-crystalline solids.