Fine kinetics of natural physical ageing in glassy As10Se90

被引：5
|
作者：
Balitska, V. [1 ,2 ]
Golovchak, R. [3 ]
Kozdras, A. [4 ]
Shpotyuk, O. [1 ,5 ]
机构：
[1] Sci Res Co Carat, Inst Mat, UA-79031 Lvov, Ukraine
[2] Lviv State Univ Vital Act Safety, UA-79007 Lvov, Ukraine
[3] Austin Peay State Univ, Dept Phys & Astron, Clarksville, TN 37044 USA
[4] Opole Tech Univ, Fac Phys, PL-45370 Opole, Poland
[5] Jan Dlugosz Univ, Inst Phys, PL-42201 Czestochowa, Poland
来源：
PHYSICA B-CONDENSED MATTER | 2014年 / 434卷
关键词：
Physical ageing; Structural relaxation; Step-wise kinetics; RELAXATION;
D O I：
10.1016/j.physb.2013.10.045
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Sigmoid behavior of natural physical ageing in glassy As10Se90 reveals multi-step-wise growing kinetics of enthalpy losses. Phenomenological description of this kinetics can be adequately developed in terms of first-order relaxation processes, tending atomic structure from initial towards more thermodynamically equilibrium state. This kinetics is shown to obey characteristic stretched exponential behavior originated from a number of growing steps, attributed to the interconnected processes of chalcogen chain alignment and cooperative shrinkage of glass network. (C) 2013 Elsevier B.V. All rights reserved
引用
收藏
页码：21 / 25
页数：5
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