Abstract
The diffusion coefficients of hydrogen in refractory metals DHM are of interest for the theory of liquid metals at the temperatures close to their melting points and in the liquid state. These coefficients are useful for the purification and manufacture of membranes designed for hydrogen purification. The DHM data for Zr, Nb, and Ta are systematized. Molecular dynamics simulation is applied to calculate DHM diffusion coefficients for these molten metals. An analysis of Arrhenius equations for DHM and their extrapolation to the premelting range with allowance for the Gorsky effect is used to estimate DHM in the temperature range where an experiment is difficult to perform.
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