MECHANISMS OF INFLUENCE OF HEATING RATE ON FRAGILITY COEFFICIENT IN Sb-Se CHALCOGENIDE GLASSY SYSTEM
S.I. Mekhtiyeva, R.I. Alekberov, H.I. Mammadova, R.F. Sadikhli
2024   03   az   p.23-28

ABSTRACT

In the article, the glass transition processes of the Sb80Se20 chalcogenide composition were studied by the differential scanning calorimetry (DSC) method depending on the heating rate in the temperature range of t=20÷300°C. It was determined that as a result of the increase in the heating rate (q) (in the range of q=2.5-17.5 °C/min), the "fragility" coefficient (m) undergoes a slight decrease, which leads to a partial increase of thermal stability (∆T) and a weak increase of glass-forming ability [or Hruby number (Hr)], thermal stability parameters (Hʹ, S).

Keywords: chalcogen, glass, amorphous, fragility coefficient.
DOI:10.70784/azip.2.2024323

Received: 11.09.2024
Internet publishing: 18.09.2024

AUTHORS & AFFILIATIONS

Institute of Physics named after H.M.Abdullayev of the Ministry of Science and Education Republic of Azerbaijan, 131 H.Javid ave. Baku, AZ-1143, Azerbaijan
E-mail: Rahim-14@mail.ru

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