Connectivity and glass transition in disordered oxide systems

被引：53
作者：
Ojovan, Michael I. [1 ]
Lee, William E. [2 ]
机构：
[1] Univ Sheffield, Immobilisat Sci Lab, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England
[2] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2AZ, England
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2010年 / 356卷 / 44-49期
基金：
英国工程与自然科学研究理事会;
关键词：
Amorphous materials; Liquids; Glasses; Glass transition; Topological disorder; Percolation; RANGE ORDER; THERMODYNAMICS; PERCOLATION; VISCOSITY; TRANSPORT; LIQUIDS; SOLIDS;
D O I：
10.1016/j.jnoncrysol.2010.05.012
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Angell's congruent bond lattice (CBL) model of topologically-disordered oxide systems is used to analyse the connectivity of disordered systems accounting for the threshold degree of connectivity below which the system has a fluid-like behaviour. This approach is used to treat the liquid-glass transition as a percolation phase transition in the system of broken bonds - configurons. Small radii configurons are revealed in strong oxide systems and larger radii configurons in fragile materials. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：2534 / 2540
页数：7
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