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

页码：2534 / 2540

页数：7

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