Melt crystallization at large deviations from equilibrium

被引：1
|
作者：
Chernov, A. A. [1 ,2 ]
Pil'nik, A. A. [1 ,2 ]
机构：
[1] RAS, SB, Kutateladze Inst Thermophys, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
来源：
MATERIALS TODAY-PROCEEDINGS | 2019年 / 16卷
关键词：
solidification; nucleation; crystal growth; non-equilibrium process; MECHANISM; GROWTH;
D O I：
10.1016/j.matpr.2019.05.241
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Kinetic model of bulk crystallization of supercooled melt is presented. It correctly takes the change in metastability level of parent phase in the process of formation and growth of the new phase nuclei into account. The distinctive feature of the model is the isolation of "forbidden" zones in the volume of crystallizing material where the formation of new nuclei is suppressed. The model allows one to find characteristic time of the nucleation stage, dependence of the volume of crystal phase on time, and mean size of crystal grains in solidified material. (C) 2019 Elsevier Ltd. All rights reserved.
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页码：144 / 150
页数：7
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