Studies on two‐dimensional nucleation
Studies on two‐dimensional nucleation
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DOI：
10.1002/crat.19810160303
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发表时间：
1981
影响因子：
1.5
通讯作者：
S. Vasudevan;S. Nagalingam;R. Dhanasekaran;P. Ramasamy
中科院分区：
文献类型：
--
作者：
S. Vasudevan;S. Nagalingam;R. Dhanasekaran;P. Ramasamy
假设一个正方形的二维原子核，导出临界自由能的表达式。使用麦克唐纳理论，计算成核率。在计算异质成核中的形成自由能时考虑了应变能和边缘能等概念。发现云母基底上NH 4 I的二维核的边缘能量为12erg/cm 2 。
Assuming a square shaped two-dimensional nucleus, the expression for critical free energy is derived. Using the McDonald theory, the nucleation rate is calculated. Concepts like strain energy and edge energy are taken into account for calculating the free energy of formation in the heterogeneous nulceation. The edge energy for two-dimensional nucleus of NH 4 I on a mica substrate is found to be 12 erg/cm 2 .