FINITE-SIZE EFFECTS ON DRYING AND WETTING TRANSITIONS IN A MOLECULAR-DYNAMICS SIMULATION

被引:24
作者
BRUIN, C
NIJMEIJER, MJP
CREVECOEUR, RM
机构
[1] Laboratorium voor Technische Natuurkunde, 2600 GA Delft
[2] Laboratoire de Physique Théorique et Hautes Energies, Bâtiment 211, Université Paris-Sud
[3] Interfaculty Reactor Institute, Delft Univ. of Technol.
关键词
D O I
10.1063/1.469013
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We report on finite-size effects in molecular dynamics simulations of the drying and wetting transitions in Lennard-Jones systems. These effects could be the reason for the incompatibility of previous, conflicting results on the nature of the drying of a substrate by a fluid. We indeed observe a crossover from a quasi-first-order to a continuous-like transition with increasing substrate area. We point out that the customary analysis based on the contact angle has disadvantages for a detailed study of the transition, which are absent in the study of the total substrate-fluid surface free energy. Furthermore, we introduce histogram techniques to this problem. © 1995 American Institute of Physics.
引用
收藏
页码:7622 / 7631
页数:10
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