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Physical characterization of ternary In-Se-Te chalcogenide glasses |
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PP: 43-49 |
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Author(s) |
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A. M. Abousehly,
N. Afify,
K. A. Aly,
A. M. Abd Elnaeim,
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Abstract |
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| Different compositions of the Inx(Se75Te25)100−x (0 ≤ x ≤ 10 at.%) chalcogenide system were prepared by the usual melt
quench technique. The results of the Differential Scanning Calorimeter (DSC) under on-isothermal conditions were reported in order
to study the effect of replacement of In atoms by Se or Te atoms on the glass transition, crystallization kinetics and the thermal
stability for Inx(Se75Te25)100−x glasses. The glass transition temperature was found to increases with the increase in In content.
The thermal stability of the studied glasses has been evaluated using various thermal stability criteria (Δ T, Hg and S), based on
the characteristic temperatures such as the glass transition temperature (Tg),the temperature at which crystallization begins (Tc), the
temperature corresponding to the maximum crystallization rate (Tp), A comparison of various simple quantitative methods to assess
the level of stability for Inx(Se75Te25)100−x (0 ≤ x ≤ 10 at.%) glasses is presented. The obtained results were discussed in terms of the
glass density, molar volume,compactness and chemical bond approach. |
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