Colloidal hard-sphere crystallization kinetics in microgravity and normal gravity

Zhengdong Cheng, Jixiang Zhu, William B. Russel, William V. Meyer, Paul M. Chaikin

    Research output: Contribution to journalArticle

    Abstract

    The hard-sphere disorder–order transition serves as the paradigm for crystallization. We used timeresolved Bragg light scattering from the close–packed planes to measure the kinetics of nucleation and growth of colloidal hard–sphere crystals. The effects of gravity are revealed by comparison of the experiments in microgravity and normal gravity. Crystallites grow faster and larger in microgravity, and the coarsening between crystallites is suppressed by gravity. The face–centered–cubic structure was strongly indicated as being the stable structure for hard–sphere crystals. For a sample with a volume fraction of 0.552, the classic nucleation and growth picture is followed.

    Original languageEnglish (US)
    Pages (from-to)4146-4151
    Number of pages6
    JournalApplied Optics
    Volume40
    Issue number24
    DOIs
    StatePublished - Aug 20 2001

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics
    • Engineering (miscellaneous)
    • Electrical and Electronic Engineering

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