Crystallization study of Sn additive Se–Te chalcogenide alloys

Patial, Balbir Singh; Thakur, Nagesh; Tripathi, S. K.

doi:10.1007/s10973-011-1579-5

Cited by 38 publications

(6 citation statements)

References 32 publications

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“…The JMA equation has been used to analyse the phase transformation kinetics under non-isothermal conditions. Patel and Pratap 18 and Patial et al 19 adopted JMA equation to calculate the Avrami exponent in the crystallisation process of glasses under continuous heating conditions. Quidort et al 25 and Gupta et al 20…”

Section: Kinetics Analysis Of the Non-isothermal Transformation Of Ba...mentioning

confidence: 99%

“…Kissinger-Akahira-Sunose (KAS) method is one of the most reliable methods for calculating the activation energy of new phase transformations in the heating or cooling process. [15][16][17] Patel et al 18 and Patial et al 19 used KAS equation to evaluate the apparent activation energy of the glass transition energy of the investigated glassy alloys. In their studies, the justification of applying KAS method for the evaluation of the glass transition activation energy comes from the shifting of glass transition peaks at different heating rates.…”

Section: Introductionmentioning

confidence: 99%

“…The transformation kinetics model of Johnson-Mehl-Avrami (JMA) equation was often used in the solidification process of transformation of inorganic non-metallic. 18,19 After depth study of the JMA model, the researchers gradually applied it to the study of phase transformation kinetics of metallic materials under non-isothermal condition. Among them, Kumar et al 22 proposed a non-isothermal JMA equation with optimised JMA parameters to represent the kinetics of transformation of α-ferrite to γ-austenite during heating of 1005 steel.…”

Section: Introductionmentioning

confidence: 99%

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Continuous cooling transformation behaviour and bainite formation kinetics of new bainitic steel

Zheng

et al. 2016

Materials Science and Technology

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In order to avoid the appearance of soft particles composed of ferrite or pearlite in the actual production of new bainitic steel, the phase transformation behaviour and bainite formation kinetics were investigated by DIL805A dilatometer, optical microscopy, scanning electron microscopy and Vickers-durometer. The results show that the soft particles cannot appear when the cooling rate exceeds 0.025 K s −1 , and this condition can be ensured by direct spray cooling in production. The local activation energy decreases with increasing transformed bainite volume fraction ( f b ), and the average energy is about 136.7 kJ mol −1 . The local Avrami exponent mainly lies between 0.5 and 3 in a wide f b range, indicating that the dominating mechanism of bainite formation is two-dimensional and one-dimensional growth.

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Section: Kinetics Analysis Of the Non-isothermal Transformation Of Ba...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Continuous cooling transformation behaviour and bainite formation kinetics of new bainitic steel

Zheng

et al. 2016

Materials Science and Technology

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“…The parameter is a stability factor depends on characteristic temperatures. Here, a stability criterion is defined as follows [64]:…”

Section: Kinetics Parameters Of the Crystallizationmentioning

confidence: 99%

Theoretical and Experimental Parameters of the Structure and Crystallization Kinetics of Melt-Quenched As30Te64Ga6 Glassy Alloy

Mebed

Alzaid

Hassan³

et al. 2021

J Inorg Organomet Polym

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The present framework reports the structural, fundamental parameters, and crystallization kinetics of the melt-quenched As30Te64Ga6 chalcogenide glass. The energy dispersive Xray analysis of the As30Te64Ga6 glassy system reveals that the constituent element ratio of the investigated bulk sample agrees with the nominal composition. Also, X-ray diffraction (XRD) and Differential Scanning Calorimetry (DSC) were used to characterize crystallization kinetics, and structural properties; respectively. Four characteristic temperatures related to various phenomena are observed in the investigated DSC traces. The first one is that corresponds to the glass transition temperature. The second one is ( 1 , and 2 ) that corresponds to the onset of the double crystallization temperatures. The third one ( 1 , and 2 ) identifies the double peak crystallization temperatures. The last characteristic temperature ( ) is the melting point.The XRD analysis indicates the amorphous structure of the as-prepared glassy alloy, while the annealed samples are polycrystalline. The crystallization kinetics of the As30Te64Ga6 bulk are studied under non-isothermal conditions. In addition, the values of various kinetic parameters such as the glass transition activation energy, weight stability standard, and Avrami support were determined. The activation energy of the crystallization process for As30Te64Ga6 glass alloy was calculated using classical methods. The results indicated that the rate of crystallization is related to thermal stability and the ability to form glass. Kinetic parameters have been estimated with some conventional methods and found to be dependent on heating rates (β).

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“…It is clear from Table 3 that the values of the constant B are dependent on the compositions, which indicates the change in the structure with additive Te content. The second approach is used to evaluate the activation energy of glass transition E g , which is defined as the amount of energy absorbed by a group of atoms in the glassy region, so a jump from metastable state to anther is possible [14,22]. E g is also involved in the molecular motion and rearrangement of atoms around Tg.…”

Section: Glass Transition Regionmentioning

confidence: 99%

Glass transition and crystallization study of Te additive Se Bi chalcogenide glass

Farid

Atyia

2015

Journal of Non-Crystalline Solids

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Crystallization study of Sn additive Se–Te chalcogenide alloys

Cited by 38 publications

References 32 publications

Continuous cooling transformation behaviour and bainite formation kinetics of new bainitic steel

Continuous cooling transformation behaviour and bainite formation kinetics of new bainitic steel

Theoretical and Experimental Parameters of the Structure and Crystallization Kinetics of Melt-Quenched As30Te64Ga6 Glassy Alloy

Glass transition and crystallization study of Te additive Se Bi chalcogenide glass

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