Influence of Substrate Strength on Wetting Behavior
Influence of Substrate Strength on Wetting Behavior
复制标题
基材强度对润湿行为的影响
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
J. Errington
中科院分区：
文献类型：
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作者：
M. Sellers;J. Errington
我们研究了Lennard-Jones系统的预湿相行为随衬底强度的演化，该系统由单原子粒子与单个无结构表面相互作用组成。巨正则跃迁矩阵蒙特卡罗模拟被用来表征表面相行为的几个壁强度。结果表明，润湿临界温度和预湿临界温度均随壁面强度的降低而增加，前者的增加速度快于后者。这两条曲线似乎在非零衬底强度下本体流体的临界温度处相遇。总的来说，预湿过渡被发现在一个三角形的区域内的温度壁强度平面，润湿和预湿临界线和一系列的分层/结晶过渡在低温下的约束。计算了沿着各浸润线的界面张力，由此推导出预湿转变潜热。几个相应的国家ide.
We examine the evolution of prewetting phase behavior with substrate strength for a model Lennard-Jones system, which consists of monatomic particles interacting with a single structureless surface. Grand canonical transition matrix Monte Carlo simulation is used to characterize surface phase behavior for several wall strengths. Our results indicate that both wetting and prewetting critical temperatures increase with decreasing wall strength, with the former increasing at a faster rate than the latter. The two curves appear to meet at the critical temperature of the bulk fluid at nonzero substrate strength. Overall, prewetting transitions are found within a triangular-shaped region within the temperature−wall strength plane, bound by wetting and prewetting critical lines and a series of layering/crystallization transitions at low temperature. The interfacial tension is calculated along each saturation line, from which we deduce the latent heat of the prewetting transition. Several corresponding states ide...