Application Of Pulse Plating Fornickel Electrodeposition From Arnformamide/water Bath

摘要

In the study that follows, a for-mamide/water mixture with nickel sulfate hexahydrate and boric acid as an electrolyte was utilized for nickel deposition on a steel substrate. Electrodeposition at higher rates (9 A/dm2) produced bright deposits with broad spaced cracks under direct current deposition. Pulse reverse waveforms were tried with variation of cathodic current density, cathodic "on time," and anodic current density to effect an improvement in electrodeposits from this mixed bath. Brightening and diminished stress in nickel electrodeposits was observed with decreasing cathodic current density or on time and with increasing anodic current density.