Vitaly V. Chaban, Yuriy V. Pereverzev, Oleg V. Prezhdo
We developed a new physical model to predict macroscopic properties of
inorganic molten systems using a realistic description of inter-atomic
interactions. Unlike the conventional approach, which tends to overestimate
viscosity by several times, our systems consist of a set of ions with an
admixture of neutral atoms. The neutral atom subsystem is a consequence of the
covalent/ionic state reduction, occurring in the liquid phase. Comparison of
the calculated macroscopic properties (shear viscosity and self-diffusion
constants) with the experiment demonstrates good performance of our model. The
presented approach is inspired by a significant degree of covalent interaction
between the alkali and chlorine atoms, predicted by the coupled cluster theory.
View original:
http://arxiv.org/abs/1202.1326
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