scholarly journals Calculating glass-forming ability in absence of key kinetic and thermodynamic parameters

2010 ◽  
Vol 97 (2) ◽  
pp. 024102 ◽  
Author(s):  
Donghua Xu ◽  
Brian D. Wirth ◽  
Jan Schroers ◽  
William L. Johnson
Keyword(s):  
Thermodynamic Parameters ◽  
Glass Forming Ability ◽  
Kinetic And Thermodynamic Parameters ◽  
Glass Forming

Thermodynamic Investigations of Chalcogenide Glasses from the GeSe2–Sb2Te3–CdTe System

2012 ◽  
Vol 194 ◽  
pp. 179-182
Author(s):  
Lilia Aljihmani ◽  
Venceslav Vassilev ◽  
Temenuga Hristova-Vasileva
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Glass Transition ◽  
Thermodynamic Parameters ◽  
Chalcogenide Glasses ◽  
Thermal Characteristics ◽  
Glass Forming Ability ◽  
Glass Forming

Glassy samples from the GeSe2-Sb2Te3-CdTe system are synthesized. The thermal characteristics (glass-transition Tg, crystallization Tcr and melting Tm temperatures) are determined using differential thermal analysis. On the base of the values of these temperatures the glass forming ability of the glasses is determined by the Hruby’s criterion. The main thermodynamic parameters (enthalpy ΔH and entropy ΔS alternation) of the crystallization are calculated. The values of the ΔH and ΔS vary within 21.196 – 98.625 kJ/mol and 33.91 – 170.93 J/(mol.K), respectively. The influence of the composition on the investigated characteristics is analysed.

Prediction of Glass Forming Ability Using Thermodynamic Parameters

2012 ◽  
Vol 65 (6) ◽  
pp. 559-563 ◽  
Author(s):  
B. Ramakrishna Rao ◽  
A. S. Gandhi ◽  
S. Vincent ◽  
J. Bhatt ◽  
B. S. Murty
Keyword(s):  
Thermodynamic Parameters ◽  
Glass Forming Ability ◽  
Glass Forming

Induction period of the crystallization of silver nitrate solutions in ethylene glycol

1991 ◽  
Vol 56 (10) ◽  
pp. 2142-2147
Author(s):  
Ivo Sláma
Keyword(s):  
Ethylene Glycol ◽  
Silver Nitrate ◽  
Induction Period ◽  
Glass Forming Ability ◽  
Transformation Theory ◽  
Concentration Region ◽  
Glass Forming ◽  
Temperature Transformation ◽  
Silver Nitrate Solutions ◽  
Nitrate Solutions

The dependence of the induction period of crystallization on supercooling was examined for the silver nitrate-ethylene glycol system over the concentration region of silver nitrate lome fraction of 0 to 0.12. Addition of AgNO3 to ethylene glycol was found to increase considerably the critical induction period of crystallization, although to a lesser extent than Ca(NO3)2, CaCl2, ZnCl2, LiCl and LiNO3 do. The effect of these salts on the critical induction period of crystallization in dimethylsulfoxide, dimethylformamide, dimethylacetamide and methanol was compared in terms of the solvent-rich composition limit of the glass-forming ability. By using the TTT(Time-Temperature-Transformation) theory, it has been deduced that the effect of the salts on the critical induction period of crystallization of ethylene glycol is probably due to the different dependences of viscosity on their concentration in ethylene glyco in the supercooling region.

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