Fragility measures and mode-coupling theory

被引：2
|
作者：
Voigtmann, Th. [1 ]
机构：
[1] Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2006年 / 352卷 / 42-49期
基金：
英国工程与自然科学研究理事会;
关键词：
glass transition; pressure effects; fragility; structural relaxation;
D O I：
10.1016/j.jnoncrysol.2006.02.145
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：
The pressure-dependence of the elastic moduli of a Lennard-Jones (LJ) system is studied within mode-coupling theory (MCT). Assuming a recently proposed link between these quantities and Angell's fragility to hold, this implies that the fragility of the LJ system increases with pressure, and that this increase is mainly connected to a change in the equation of state of the liquid, and not glassy dynamics as such. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：4826 / 4829
页数：4
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