Abstract
We compare the values of the solid-liquid interface free energy of NaCl crystals as obtained from simulations of the crystal nucleation barrier with those
obtained from numerical studies of the solid-liquid contact-angle near
the triple point. We find that the values obtained by these different
methods differ by more than a factor two. We analyse the possible sources
for this discrepancy and conclude that, within the framework of
Classical Nucleation Theory, experiments on crystal nucleation alone
provide insufficient information to yield reasonable estimates for the
solid-liquid surface free energy.
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