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Trends in Physical Chemistry   Volumes    Volume 16 
Existence of three activation energies in the melting transition of SeInAg glassy alloy
D. Sharma, J. C. MacDonald, R. K. Shukla, A. Kumar
Pages: 87 - 94
Number of pages: 8
Trends in Physical Chemistry
Volume 16 

Copyright © 2016 Research Trends. All rights reserved

This study reports the effect of cooling rate on the melting transition of SeInAg glassy alloy using the non-isothermal calorimetric technique. It also reports how the effect of cooling changes the activated kinetics of melting transition. Heating and cooling scans were performed for the amorphous glassy alloy Se90In8Ag2 over a wide temperature range from its solid state to the melting state which ranges from 273.15 K to 523.15 K where the material was heated first to its melting state and then cooled rapidly from melting state to the solid state with various ramp rates from 5-50 K/min. Every time the sample was heated at a constant heating rate to keep the heating parameters constant and to observe how the cooling parameters would change the kinetic behavior of melting transition. Three activation energies were observed for the melting transition of Se90In8Ag2 with three different linearity of slopes applying the Johnson-Mehl-Avrami (JMA) model and Arrhenius theory. 
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