Abstract
The macromorphological features of electrodeposited zinc that result from hydrodynamic flow along a flat plate electrode (fpe)_and on a rotating disk electrode (rde) were investigated using an acidic chloride solution. Characteristics of reattaching flow and the possible presence of streamwise-directed counterrotating Taylor vortices were seen in the macromorphology of three dimensional relief imprints. Relief striations in zinc electrodeposition depend on the average current density, the rotation speed (rde) or linear flow velocity (fpe), the time of deposition, the ionic zinc content and electrolyte composition, the pH value, the hydrodynamic flow pattern, and the presence of surfactant. Macromorphological imprints of electrodeposited zinc within a certain current density range (10–100 mA/cm 2) can be employed for both instantaneous and cumulative electrochemical visualization of flow patterns.
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