Kinetic Parameters of Glass Transition in Glassy Se_{1 - x}Sb_x Alloys

Authors

R. S. TIWARI
N. MEHTA
R. K. SHUKLA
A. KUMAR

DOI

-

Abstract

Differential Scanning Calorimetry (DSC) is performed at different heating rates under non-isothermal conditions to study the glass transition kinetics of glassy Se_{1 - x}Sb_x (x = 0.02, 0.04, 0.06, 0.08 and 0.10) alloys. The activation energy of glass transition E_t has been calculated using the two different non-isothermal methods. One of the two methods is based on the theory of glass transition kinetics and structural relaxation as developed by Moynihan and other workers, while the other relation is well-known Kissinger's relation. The results show that the values of E_t determined from both the methods are in good agreement with one another. The variation of glass transition temperature T_g with heating rate and composition has also been studied and the results have been explained in terms of the glassy structure of Se-Sb system.

Keywords

Differential scanning calorimetry, Glass transition temperature, Activation energy of glass transition.

First Page

233

Last Page

242

Recommended Citation

TIWARI, R. S.; MEHTA, N.; SHUKLA, R. K.; and KUMAR, A. (2005) "Kinetic Parameters of Glass Transition in Glassy Se_{1 - x}Sb_x Alloys," Turkish Journal of Physics: Vol. 29: No. 4, Article 5. Available at: https://journals.tubitak.gov.tr/physics/vol29/iss4/5