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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.12 [2005] >
IJEMS Vol.12(6) [December 2005] >
| Title: | Calorimetric studies of thermal crystallization in glassy Se80Te20 and Se80In20 alloys |
| Authors: | Mehta, N
Kushwaha, V S
Kumar, A |
| Issue Date: | Dec-2005 |
| Publisher: | CSIR |
| IPC Code: | C22C29/00 |
| Abstract: | Different methods have been used by various
workers to determine the activation energy of thermal crystallization (Ec) in chalcogenide glasses
using non-isothermal DSC data. In the present work, the crystallization
kinetics of two important binary alloys Se80Te20 and Se80In20
is studied, using non-isothermal DSC data. DSC thermograms of these alloys
have been taken at five different heating rates. The values of activation
energy of crystallization (Ec)
have been determined by four different methods, i.e., Kissinger’s relation,
Matusita and Sakka theory, Augis and Bennett’s approximation and Ozawa’s
equation. The results obtained have been compared with each other to see the
effect of using different methods in the determination of Ec. The composition dependence of Ec has also been discussed. |
| Page(s): | 571-576 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.12(6) [December 2005]
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