Influence of Commercial Organic Additives on the Nickel Electroplating

摘要

This study investigated the combined effects of commercial electroplating additives on the propertiesof nickel electrodeposits. Pieces of carbon steel were electroplated in a Hull cell, using the Watt bathwith different concentrations of additives and different times of deposition according a 25-1 fractionalfactorial design. Three response variables, namely brightness, roughness and charge transfer resistancewere studied. Several synergistic and antagonistic interactions between the studied factors were foundand briefly discussed on a physical basis. Principal Component Analysis (PCA) revealed thatclustering in PC-space can be associated with morphological characteristics of the coatings.