Abstract
In nickel/zirconia composite electroplating, the influence of characteristics of zirconia powder on co-deposition of zirconia particles in the composite plating film and its mechanism were studied to increase the amount of zirconia co-deposited. The amount of zirconia co-deposited in the film by composite electroplating related with specific surface area of zirconia mainly, but had nothing with particle size. As specific surface area became lower, the amount of co-deposition increased. The surface positive charge of zirconia particles is related in co-deposition mechanism of them. Probably, it occurs due to the difference of electrostatic repulsion between electrodeposited particles and suspended particles by changing the specific surface area of zirconia particles.
