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Heavy non-ferrous metals
Название The pursuit of maximal possible period for copper dendritic electrocrystallisation between its take off the cathode
Автор Sokolovskaya E. E., Murashova I. B., Lebed’ A. B., Osipova M. L.
During too long electrocrystallisation of dendritic copper on cathode rods the surface deposit lay restructures from branched dendritic one to rough globule scrabs. Overpotential boundary conditions are determined (ηbound) by means of chronogalvanometry method in series of constant cathodic overpotentials. This overpotential (–0,55 V) corresponds the change on control nature on deposit growth front (from mixed to pure diffusion one).The duration of continuous deposit crystallization which corresponds to ηbound, achievement forms 1,6–1,8 hour against technological 2 hours.
Ключевые слова Copper powder, electrolysis, current density, crystallization condition, duration of deposition, overvoltage, polarization curve, hydrogen evolution
Language of full-text русский
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