Size Effect in the Rate of Electrodeposition of Co–W Coatings from a Citrate Bath

It is shown that two types of size effects in the deposition rate (i.e., a dependence of the electrodeposition rate on electrode surface area) can be observed for electrodeposition of Co–W coatings from a citrate bath: a microeffect associated with a relation between the size of microelectrodes and the diffusional current density and a macroscopic size effect related to the structure of an inducing species (a cobalt citrate complex).