A new approach to description of the pressure dependence of viscosity

被引：21

作者：

Avramov, I. ^{[1
]}

Grzybowski, A. ^{[2
]}

Paluch, M. ^{[2
]}

机构：

[1] Bulgarian Acad Sci, Inst Phys Chem, BU-1113 Sofia, Bulgaria

[2] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2009年 / 355卷 / 10-12期

关键词：

Glass transition; Pressure effects; Fragility; Viscosity; TEMPERATURE-DEPENDENCE; DIELECTRIC-RELAXATION;

D O I：

10.1016/j.jnoncrysol.2009.01.031

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：

Based on more precise description of the temperature-pressure dependence of entropy, we expand the Avramov's model. In this way, viscosity or relaxation time are described with better accuracy. It is demonstrated that there is a strong relation between the fragility parameter F, described here, and the fragility parameter m, introduced by Angell, m approximate to (13 +/- 10%)F. Analyses of experimental data on dielectric relaxation of phenylphthalein-dimethylether (PDE) are in agreement with the proposed model. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：733 / 736

页数：4

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