Colloidal suspensions of platelets are known, experimentally, to show a variety of phenomena reflecting the
interplay of their Oseen-Frank elastic constants and surface tension effects [1, 2]. We have previously determined
the Frank elastic constants of thin hard platelets by Monte Carlo simulation  and have recently extended this work to
non-zero thickness , in both cases comparing with theoretical predictions. As expected, the bend elastic constant K3
is at least an order of magnitude smaller than the other two; the results are in reasonable agreement with experiment. We
have also examined the phases of thin hard platelets confined between hard flat walls, observing surface-induced ordering
and capillary condensation of the nematic phase.
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 A. A. Verhoeff, R. H. J. Otten, P. van der Schoot, and H. N. W. Lekkerkerker, J. Phys. Chem. B, 113, 3704 (2009).
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 P. A. O'Brien, M. P. Allen, D. L. Cheung, M. Dennison, and A. J. Masters, in preparation.