Iso-conversional Analysis of Amorphous-Crystalline Transformation of Se75Te15Sn10 Glassy Alloy

被引：0
|
作者：
Patial, Balbir Singh [1 ]
Thakur, Nagesh [1 ]
Tripathi, S. K. [2 ]
机构：
[1] HP Univ, Dept Phys, Summer Hill Shimla 171005, Himachal Prades, India
[2] Punjab Univ, Cent Adv Study Phys, Chandigarh, India
来源：
INTERNATIONAL CONFERENCE ON ADVANCES IN CONDENSED AND NANO MATERIALS (ICACNM-2011) | 2011年 / 1393卷
关键词：
Chalcogenide glass; DSC; Activation energy for crystallization; Iso-conversional methods;
D O I：
10.1063/1.3653626
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Differential scanning calorimetry (DSC) has been performed under non-isothermal conditions at four different heating rates (5, 10, 15 and 20 degrees Cmin(-1)) to study the activation energy for crystallization of Se75Te15Sn10 glassy alloy. The activation energy of crystallization has been determined by analyzing the data using three iso-conversional methods of Kissinger-Akahira-Sunose (KAS), Ozawa-Flynn-Wall (OFW) and Friedman for different degrees of conversion (chi). The variation of activation energy for crystallization with degree of conversion (chi) and hence with temperature has been reported and discussed. The temperature dependence of activation energy is explained in the light of the nucleation theory of Turnbull and Fisher.
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