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ARTICLE

Composition dependence of heat capacity in Se₇₅Te_15-XCd₁₀In_X(x=0, 5,10 and 15) chalcogenide glasses

S. Kumar^a,*, P. Kumar^b, S. K. Sahni^c, S. P. Singh^d, K. Singh^e

a Department of Physics, Government Post Graduate College,Bisalpur,Pilibhit, 262201 U.P. India
b Department of Physics V.R.A.L Government Girls Degree College, Bareilly, U.P. India
c Department of Chemistry, Government Post Graduate College,Bisalpur,Pilibhit, 262201 U.P. India
d Department of Physics, Dr. B. R. Ambedkar Government Degree College Mainpuri U.P. India
e School of Physical Science, Jawaharlal Nehru University, New Delhi, India

* Corresponding Author:

Chalcogenide Letters 2023, 20(6), 393-398. https://doi.org/10.15251/CL.2023.206.393

Received 03 March 2023; Accepted 01 June 2023;

Abstract

Differential Scanning Calorimetry (DSC) is performed at different heating rates under non-isothermal conditions to study the heat capacities studies of glassy Se₇₅Te_15-XCd₁₀In_X(x=0, 5,10and 15) alloys.Heat capacities of Se₇₅Te_15-XCd₁₀In_X(x=0, 5,10 and 15) chalcogenide glasses at glass transitions (T_g) and crystallisations temperatures (T_c) werementioned in this work. The evaluated endothermic (ΔC_pg) and exothermic (ΔC_pc) heat capacities of Se-Te-Cd-In system varies with alloying concentrations and maximum at threshold composition (5 at wt.% of In). This could be explained on the basis of chemical bond theory of the solids.

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Keywords

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