Kinetics Study of (Se80Te20)100-xCdx Glassy Alloy by Differential Thermal Analysis Using Non-Isothermal Technique

Author(s) Mainika, N. Thakur
Affiliations Department of Physics, H.P. University, Summer Hill, Shimla-5
Issue Volume 3, Year 2011, Number 1, Part 1
Dates Received 04 February 2011, published online 23 March 2011
Citation Mainika, N. Thakur, J. Nano- Electron. Phys. 3 No1, 151 (2011)
PACS Number(s) 61.43Fs, 64.70.P, 61.40D, 81.70.Pg, 61.43Dq, 65.60
Key words Chalcogenide glasses (3) , Activation energy (5) , Tg (4) , DTA (3) , Se-Te-Cd.
The kinetics of crystallization in (Se80Te20)100 xCdx (x = 0, 2, 4 and 6) alloys at different heating rates have been studied by Differential Thermal Analysis in non-isothermal condition. A comparison of various quantitative methods to assess the level of stability of the glassy material in the above mentioned system is presented. All these methods are based on the characteristics temperature obtained by heating of the samples, such as glass transition temperature (Tg), temperature of crystallization (Tc), and the melting temperature (Tm). From the dependence of glass transition temperature on heating rate, the activation energy (Eg) has been calculated on the basis of the Kissinger and Moynihan models.