Deformation of colloidal crystal

胶体晶体是直径从几十纳米到几微米大小的单分散胶体颗粒的有序阵列。结构和物理性质的变化受到各种参数的强烈影响，如胶体颗粒的性质(如化学结构、直径)以及拉应力的方向和强度。利用理论分析的数据来预测胶体晶体在外加张应力作用下的结构和物理性质的变化是至关重要的。本研究从实验和理论两个方面阐明了外加拉伸对胶体晶体颗粒形态和结构的影响。

A colloidal crystal is an ordered array of monodisperse colloidal particles with diameters ranging from a few tens nano to a few micrometer size. Structural and physical character changes are strongly affected by various parameters such as nature of colloidal particles (e.g. chemical structure, diameter), and direction and strength of tensile stress. It is crucial to predict structural and physical character changes of the colloidal crystal induced by external tensile stress using the data from theoretical analysis. In this study, effects of external tensile on morphology of particles and structure of colloidal crystal have been clarified from both experimental and theoretical aspects.