FICTIVE PRESSURE EFFECTS IN STRUCTURAL RELAXATION

被引：27

作者：

GUPTA, PK

机构：

[1] Ohio State Univ, United States

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1988年 / 102卷 / 1-3期

关键词：

Kinetics - Relaxation Processes;

D O I：

10.1016/0022-3093(88)90136-6

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：

Structural relaxation is treated in terms of two independent internal parameters, namely fictive temperature, Tf, and fictive pressure, Pf. Rate equations for Tf and Pf are derived. It is shown that, in general, the fictive pressure changes during isobaric cooling experiments and the key parameter controlling this change is the configurational expansion coefficient. Furthermore it is pointed out that by examining the shape of the relaxation paths in the ΔV - ΔS space the relaxation coefficients can be evaluated readily.

引用

收藏

页码：231 / 239

页数：9

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