The Determination of the Optimum Current Wave in Reversing Current Metal Electrodeposition

Abstract

The experimental procedure for the determination of the optimum reversing current wave, producing uniformlly distributed polycrystalline deposits, is given. First, deposition at the maximum current density for different periods of RC wave was carried out. The period was increased until a smooth polycrystalline deposit was obtained in the middle of the electrode. Subsequently, the deposition current density was decreased by increasing the anodic-to-cathodic time ratio, in order to obtain a suitable metal distribution on a macroprofile.