Fast and slow crystal growth kinetics in glass-forming melts

2014 ◽  
Vol 140 (21) ◽  
pp. 214504 ◽  
Author(s):  
J. Orava ◽  
A. L. Greer
Keyword(s):  
Crystal Growth ◽  
Growth Kinetics ◽  
Glass Forming ◽  
Crystal Growth Kinetics

scholarly journals Thermodynamics of rapid solidification and crystal growth kinetics in glass-forming alloys

2019 ◽  
Vol 377 (2143) ◽  
pp. 20180205 ◽  
Author(s):  
P. K. Galenko ◽  
V. Ankudinov ◽  
K. Reuther ◽  
M. Rettenmayr ◽  
A. Salhoumi ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Rapid Solidification ◽  
Growth Kinetics ◽  
Driving Forces ◽  
Diffusion Flux ◽  
Solute Diffusion ◽  
Glass Forming ◽  
First Case ◽  
Crystal Growth Kinetics ◽  
Ergodicity Breaking

Thermodynamic driving forces and growth rates in rapid solidification are analysed. Taking into account the relaxation time of the solute diffusion flux in the model equations, the present theory uses, in a first case, the deviation from local chemical equilibrium, and ergodicity breaking. The second case of ergodicity breaking may exist in crystal growth kinetics of rapidly solidifying glass-forming metals and alloys. In this case, a theoretical analysis of dendritic solidification is given for congruently melting alloys in which chemical segregation does not occur. Within this theory, a deviation from thermodynamic equilibrium is introduced for high undercoolings via gradient flow relaxation of the phase field. A comparison of the present derivations with previously verified theoretical predictions and experimental data is given. This article is part of the theme issue ‘Heterogeneous materials: metastable and non- ergodic internal structures’.

scholarly journals Simultaneous determination of nucleation and crystal growth kinetics of struvite using a thermodynamic modeling approach

2013 ◽  
Vol 215-216 ◽  
pp. 903-912 ◽  
Author(s):  
Mary Hanhoun ◽  
Ludovic Montastruc ◽  
Catherine Azzaro-Pantel ◽  
Béatrice Biscans ◽  
Michèle Frèche ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Simultaneous Determination ◽  
Thermodynamic Modeling ◽  
Growth Kinetics ◽  
Modeling Approach ◽  
Crystal Growth Kinetics ◽  
Kinetics Of
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