The European Physical Journal Applied Physics

Table of Contents - July 2011 - Volume 55, Issue 01 (Focus on Hakone XII)  

Physics and Mechanics of Fluids, Microfluidics

Effect of indium additive on the heat capacity of Se-Zn chalcogenide glasses

A. K. Singh 

Department of Physics, Faculty of Science, Banaras Hindu University, Varanasi, 221005, India

Abstract

Knowledge of endothermic and exothermic heat capacities of optoelectrics materials is important to define their energy/data storage capability. Heat capacities of Se98-xZn2Inx (0 ≤ x ≤ 10) chalcogenide glasses at glass transitions (Tg) and crystallisations temperatures (Tc) have been reported in this work. The evaluated endothermic (ΔCpg) and exothermic (ΔCpc) heat capacities of Se98-xZn2Inx system varies with alloying concentrations obtained minimum and maximum respectively at threshold composition (6 at wt.% of In). The up and down trend in ΔCpc and ΔCpg at Tg, Tc could be explained on the basis of structural units/avarage coordination number 〈r〉 of the glassy materials.

(Received December 25 2010)

(Revised February 10 2011)

(Accepted February 16 2011)

(Online publication July 21 2011)

Correspondence:

e-mail: abhaysngh@rediffmail.com