【摘要】 为研究微重力条件下胶体晶体生长动力学和结构变化的规律,设计了空间胶体晶体生长实验装置。实验装置同时搭载三个实验样品,每个实验样品有两个实验工位。通过对胶体晶体的实空间成像及倒易空间衍射(Kossel衍射)成像分别实现样品形貌及样品晶体结构的观测。在完成的空间搭载飞行任务中,获得的大量空间及地面实验数据,结果表明微重力环境中的胶体晶体样品有更好的稳定性。更多还原

【Abstract】 To study the growth kinetics and structural transformation of colloidal crystals under microgravity condition,an experimental device with three crystallization cells,each with two working positions was designed. It uses direct-space imaging with white light to monitor morphology of the crystals and reciprocal-space laser diffraction( Kossel lines) to reveal the lattice structure. The device,intended for colloidal crystal growth on Tiangong-1 target spacecraft,had run on-orbit for more than one year till the end of the mission. Hundreds of images and diffraction patterns were collected via the on-ground data receiving station. The data showed that single crystalline samples were successfully grown on the orbit. Preliminary results indicated that the on-orbit crystals were more stable than those on the ground.更多还原