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Thermal stability and crystallization kinetics of Se–Te–Sn alloys using differential scanning calorimetry
DSC study of Se92Te8−x Sn x (x = 0, 1, 2, 3, 4, 5) chalcogenide glasses
glass transition temperature ( T g ) and the heat evolved during the crystallization process is recorded as a function of time. In the non-isothermal method, the sample is heated at a constant rate and the heat evolved is again recorded as a function of
as a function of glass transition temperature K ( T g ) and the maximum crystallization temperature K ( T p ). The phases at which the glasses crystallize after the thermal process have been identified by X-ray diffraction
cooling or, opposite endothermic changes during heating through glass transition temperature range. Perkin Elmer (USA) developed the StepScan DSC method [ 38 ] that is a simplified method of the well-known MDSC technique [ 39 ]. The temperature program in
glass transition temperature ( T g ) of polymer is influenced by several factors that include chain stiffness, ease of rotation of bonds, interactions between molecules, and chain length. In this regard, at least in bulk polymers, T g reflects the
non-isothermal [ 14 , 15 ]. In the isothermal method, the sample is brought quickly to a temperature above the glass transition temperature and heat evolved during the crystallization process at a constant temperature is recorded as a function of time
signal is especially suited to observe relaxation phenomena during cure [ 15 , 16 ] showing more sensitivity and resolution than other signals like HF rev [ 15 ]. In TMDSC, the dynamic glass transition temperature, T gd , is affected by the temperature
transition temperature of the uncured components of the mixture ( T g0 ). The glass transition temperature of the completely cured EP system was designated as T g∞ and determined during the second heating mode. Since the dynamically cured samples did not
, thermodynamic, and structural properties of the composites are studied insufficiently. Weng et al. [ 7 ] came to conclusion that 5–20 mass% addition of C 60 results in an increase of glass transition temperature of PS but effect of smaller additives was not
, the (−)-menthol-based ILs investigated were able to decrease the glass transition temperature of the PMMA matrices. In certain cases, the difference reached more than 313.15 K. Taking into account that this is a requirement to classify a compound as a
difficulties of PI; due to its extreme glass transition temperature and often, being insoluble in most organic solvents in its fully imidized form. While Cornelius et al. [ 10 ], and Wen et al. [ 11 ], reported that introducing silicone segment network into PI