The Properties of Bright Nickel Electrodeposits in Relation to the Period of Service of the Plating Bath. III-Composition and Microstructure

SYNOPSIS

Carbon, oxygen, Hydrogen and nitrogen contents of bright nickel deposits from two proprietary solutions were determined by chemical analysis. The amount of organic material incorporated in the deposits tended to increase with increasing length of service of the plating bath. For both types of bright nickel there seemed to be a definite relationship between the ductility of the deposits and the amount of material (addition agents and impurities) included in them.

The results indicate that additions of anti-stress agent made periodically to one of the solutions, which tended to lower stress and raise ductility, reduced the total amount of organic material in the deposit. This requires confirmation, but could have important practical and theoretical implications.