抄録
The electrodeposition behavior of Zn-Cd alloys from sulfate solutions was investigated, including the effects of plating variables such as bath composition, current density, temperature and bath pH on alloy composition and the cathode current efficiency of alloy deposition. The deposition of Zn-Cd alloys showed the typical features of the normal type, while the formation of Zn hydroxide on the cathode during alloy deposition was recognized from measurements of the polarization curves, the pH in the vicinity of cathode and the film resistance on the cathode. The process of Zn-Cd alloy deposition was compared with that of anomalous codeposition of Zn-iron-group metal alloys involving Zn hydroxide formation due to the pH rise in the vicinity of cathode.
