"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

APPLICABILITY OF KISSINGER’S RELATION IN THE DETERMINATION OF ACTIVATION ENERGY OF GLASS TRANSITION PROCESS

N. Mehta1, A. Kumar1,*

Affiliation

  1. Department of Physics, Harcourt Butler Technological Institute Kanpur-208 002, India

Abstract

The present paper reports the non-isothermal DSC measurements on 30 binary and ternary chalcogenide glasses.The activation energy of glass transition (Et) is calculated using Kissinger’s relation which is basically derived for amorphous to crystalline transformation. The results show that Et values obtained from Kissinger’s relation are in good agreement with the Et values which are obtained using Moynihan’s relation derived, based on the concept of thermal relaxation. It has also been found that the composition dependence of Et, obtained from the two different relations, is similar in most of the glassy systems. This shows that Kissinger’s relation can be applied in determining the activation energy of glass transition process also. This shows that the phase transformation near glass transition temperature is analogous to phase transformation near crystallization temperature..

Keywords

Chalcogenide glasses, Glass transition kinetics, Differential scanning calorimetry.

Submitted at: Dec. 6, 2004
Accepted at: May 26, 2005

Citation

N. Mehta, A. Kumar, APPLICABILITY OF KISSINGER’S RELATION IN THE DETERMINATION OF ACTIVATION ENERGY OF GLASS TRANSITION PROCESS, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 3, pp. 1473-1478 (2005)