Abstract
Our extended electrical conductivity and viscosity measurements have revealed a general fractional power relation between them in pure and mixed ionic melts: $\ensuremath{\sigma}T\ensuremath{\propto}(T/\ensuremath{\eta}{)}^{m}$ ( $m\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0.8\ifmmode\pm\else\textpm\fi{}0.1$ for all melts) where $\ensuremath{\eta}$ is a shear viscosity of a melt. This relation has been observed in 9 orders of magnitude range of viscosity for the well known ionic melt ${\mathrm{Ca}}_{2}{\mathrm{K}}_{3}({\mathrm{NO}}_{3}{)}_{7}$. This fractional interdependence is considered to be a macroscopic manifestation of a basic difference in elementary mechanisms of charge and momentum transport in ionic melts.
Published Version
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