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  • 1 Department of Physics, H. P. University, Summer Hill, Shimla 171005, India
  • | 2 Department of Physics, Jaypee University of Information Technology, Waknaghat, Solan 173215, HP, India
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Abstract

Bulk samples of Se92Te8−xSnx glassy alloys are obtained by melt quenching technique. Differential scanning calorimetry (DSC) technique (under non-isothermal conditions) has been applied to determine the thermal properties of Se-rich glassy alloys at different heating rates. Results of glass transition temperature, enthalpy released, fragility and specific heat of Se92Te8−xSnx (x = 0, 1, 2, 3, 4 and 5) chalcogenide glasses have been reported and discussed. The glass transition temperature (Tg), activation energy of glass transition and fragility are found to increase with increase in Sn content. The glass transition temperature (by Gibbs–Dimarzio equation) also has been calculated. Both values of Tg (experimental as well as theoretical) are found to be in good agreement at a heating rate of 10 K min−1. It has been observed that the value of specific heat (Cp) below glass transition and difference in the value of Cp before and after glass transition (ΔCp) is highly compositional dependent. The enthalpy release is related to the metastability of the glasses, and the least stable glasses are supposed to have maximum ΔHc.

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  • Impact Factor (2019): 2.731
  • Scimago Journal Rank (2019): 0.415
  • SJR Hirsch-Index (2019): 87
  • SJR Quartile Score (2019): Q3 Condensed Matter Physics
  • SJR Quartile Score (2019): Q3 Physical and Theoretical Chemistry
  • Impact Factor (2018): 2.471
  • Scimago Journal Rank (2018): 0.634
  • SJR Hirsch-Index (2018): 78
  • SJR Quartile Score (2018): Q2 Condensed Matter Physics
  • SJR Quartile Score (2018): Q2 Physical and Theoretical Chemistry

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
4
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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