Viscosity and Self-Diffusion of Liquid Metals

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Science  03 Jul 1964:
Vol. 145, Issue 3627, pp. 50-51
DOI: 10.1126/science.145.3627.50


It is demonstrated that the empirical relationship between activation energy of viscosity and the melting point of a metal is also true for the energy of self-diffusion, in view of the Stokes-Einstein relation. The provision is that viscosity and self-diffusion be expressed in a self-consistent manner, as provided, for example, by the J. Frenkel's theory of liquids. Thus, one can now estimate either the viscosity or the self-diffusion of any metal over a substantial temperature range from its known melting point.