Glass transition kinetics of some Se-Te-Ag chalcogenide glasses

被引：10
|
作者：
Tiwari, RS [1 ]
Mehta, N [1 ]
Shukla, RK [1 ]
Kumar, A [1 ]
机构：
[1] Harcourt Butler Technol Inst, Dept Phys, Kanpur 208002, Uttar Pradesh, India
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2005年 / 82卷 / 01期
关键词：
chalcogenide glasses; DSC; glass transition kinetics;
D O I：
10.1007/s10973-005-0839-7
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The present paper reports the Differential Scanning Calorimetric (DSC) study of some Ag doped Se-Te chalcogenide glasses. DSC runs were taken at different heating rates. Well-defined endothermic and exothermic peaks were obtained at glass transition and crystallization temperatures. The variation of glass transition temperature T-g with Ag concentration has been studied. It has been found that T-g decreases with increase in Ag concentration. The heating rate dependence of T-g is used to evaluate the activation energy of glass transition (Delta E-t). The value of Delta E-t has been found to increase with increase in Ag concentration followed by nearly constant value at higher concentrations of Ag.
引用
收藏
页码：45 / 49
页数：5
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