Measurement of the hard-sphere equation of state using screened charged polystyrene colloids

M. Rutgers, J. Dunsmuir

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Using a high-resolution digital x-ray camera we have accurately measured the density profiles of several sediments of highly screened polystyrene colloidal spheres suspended in water. From the integral of the profile with height we directly measured the osmotic pressure as a function of volume fraction. The results are in excellent agreement with calculations of the hard-sphere equation of state for both the crystalline and disordered states. These results demonstrate experimentally that particles with a hard-sphere force law indeed exhibit the liquid-solid phase transition at the predicted volume fractions.

    Original languageEnglish (US)
    Pages (from-to)5043-5046
    Number of pages4
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume53
    Issue number9
    DOIs
    StatePublished - 1996

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

    Fingerprint Dive into the research topics of 'Measurement of the hard-sphere equation of state using screened charged polystyrene colloids'. Together they form a unique fingerprint.

    Cite this