Abstract
The electroplating of bright nickel from Watts bath with stepwise additives of gelatin, benzene sulphonic acid and its sodium salt was investigated. Electroplating of fine dispersed nickel layer from the same bath with inclusions of gelatin, benzene sulphinic acid sodium salt, Al2(SO4)3 and SiO2 was also examined. The effects of bath constituents on the cathodic polarization and the interfacial impedance response during deposition of both forms of nickel was discussed. The surface morphology of the deposits was examined by scanning electron microscopy (SEM) and the crystal structure was elucidated by X-ray diffraction.
