Abstract：
We study the coarsening behavior of assemblies of islands on smectic A freely suspended films in ISS microgravity experiments. The islands can be regarded as liquid inclusions in a two-dimensional fluid in analogy to liquid droplets of the discontinuous phase of an emulsion. The coarsening is effectuated by two processes, predominantly by island coalescence, but to some extend also by Ostwald ripening, whereby large islands grow at the expense of surrounding smaller ones. A peculiarity of this system is that the continuous and the discontinuous phases consist of the same material. We determine the dynamics, analyze the self-similar aging of the island size distribution and discuss characteristic exponents of the mean island growth.
摘要：
我们研究了ISS微重力实验中近晶A自由悬浮膜上岛屿组件的粗化行为。类似于乳液不连续相的液滴，这些岛可以被视为二维流体中的液体夹杂物。粗化通过两个过程实现，主要通过岛屿合并，但在某种程度上，奥斯特瓦尔德成熟，因此，大岛的生长是以牺牲周围较小的岛屿为代价的。该系统的特点是连续相和非连续相由相同的材料组成。我们确定动态，分析岛大小分布的自相似老化，并讨论平均岛增长的特征指数。
