Determination of the crystallization kinetic parameters of Ge22.5Te77.5 glass using model-free and model-fitting methods

Evaluation of the transformation kinetics of Ga7.5Se92.5 chalcogenide glass using the theoretical method developed and isoconversional analyses

“…The maximum percentage difference of the effective activation energy obtained using Vyazovkin and KAS methods is less than 1%. This close agreement between Vyazovkin and KAS isoconversional methods was also reported by many authors [22,27,29,54,55]. Accordingly, this variation of the effective activation energy can be attributed to the variation of E eff.…”

“…The application of DSC to the characterization of the phase transformations has been previously examined by several workers [19][20][21][22]. Studies of the transformation kinetics of amorphous materials under non-isothermal conditions can be performed using several different ways and interpretations [23][24][25][26][27][28][29][30][31].…”

“…The most popular isoconversional methods used for calculation of the effective activation energy are Starink [39,44], Kissinger-Akahira-Sunose (KAS) [46][47][48], Tang [49], Flynn-Wall-Ozawa (FWO) [50,51] and Vyazovkin method [52,53]. Many authors [22,27,29,54,55] have been mentioned that there is a close agreement between KAS, Tang, Starink, FWO and Vyazovkin methods. So, in the present work the effective activation energy of crystallization will be concerned with Vyazovkin (as a non-linear method) and KAS method (as a linear one).…”

Impact of deposition conditions on the crystallization kinetics of amorphous GeTe films

“…The dependence of E c on the fraction transformed is affected by changes in the nucleation and growth behavior during the crystallization process [24][25][26]. The local activation energy E c (a) is composed of two parts: the activation energy of nucleation (E n ) and the activation energy of growth (E g ) [27][28][29].…”

Study of Glass Transition and Crystallization Behavior in Ga15Se85-xPbx(0 ≤ x ≤ 6) Chalcogenide Glasses

“…Abu-Sehly [23] has studied kinetics studies of crystallization of TeAsCu chalcogenide glasses, Elabbar et al [24] have studied the crystallization kinetics of PbSe chalcogenide glasses using DSC techniques, Soltan [25] has studied the pre-crystallization kinetics of PbSe glass, Mehta et al [26] have studied the glass transition phenomena in SeTe and SeGe based ternary chalcogenides glasses, Abd Elnaeim et al [27] have studied the glass transition and crystallization kinetics in InSeTe chalcogenide glasses. The work on glass transition temperature and thermal stability of SeSn chalcogenide glass by Omar et al [28], study of the glass transition in amorphous Se by Abu-Sehly et al [29], calorimetric studies of SeTeCd and SeTeCdIn multicomponent chalcogenide glasses by Kumar and Singh [30], phase transformation kinetics of SeGePb chalcogenide glass by Praveen et al [31], determination of crystallization parameters of GeTe glasses by El-Oyoun [32] are also worth mentioning. The studies on preparation and char- The contents were heated in a microprocessor-controlled programmable mue furnace, where the temperature was increased at 3 K/min up to 1273 K and kept at that temperature for 14 h with frequent rocking to ensure the homogenization of the melt.…”