The crystal structure of bubbles in the wet foam limit.
The crystal structure of bubbles in the wet foam limit.
复制标题
湿泡沫极限中气泡的晶体结构。
作者：
A. V. D. Net;W. Drenckhan;D. Weaire;S. Hutzler
我们观察到湿泡沫中小气泡（直径 200 µm）自发形成的丰富多样的三维晶体和缺陷结构。这些观察证实并扩展了布拉格和奈在 1947 年所做的观察。然而，虽然他们的二维气泡筏实验刺激了许多研究人员，但他们在组合方面的工作似乎并没有得到跟进。这些有序的填料现在对泡沫物理学提出了有趣的问题。对于传统的热力学和动力学来说，气泡似乎太大了，无法轻松解释高度有序化。
We have observed a rich variety of three-dimensional crystal and defect structures spontaneously formed by small (diameter 200 µm) bubbles in a wet foam. The observations confirm and extend those made by Bragg and Nye in 1947. However, while their experiments with two-dimensional bubble rafts have stimulated many researchers, their work on assemblages does not appear to have been followed up. These ordered packings now pose intriguing questions for the physics of foams. The bubbles seem too large for conventional thermodynamics and kinetics to easily explain the high degree of ordering.