Utilization of Pulsed Currents in Electrodeposition.

In a classical process, metal electrodeposition is performed by direct electric current. The utilization of a different current form results in several perturbations of the electrolysis process some of which are beneficial for the deposit. This effect is used in electrodeposition by pulsed currents. This study examines the possibilities of utilizing pulsed currents for nickel, gold and hard chromium plating. The discussion covers the possible utilization of very high instantaneous values of current density and the perturbation of the deposition process by selecting a specific form of electrolysis current. The first of these techniques gave interesting results in the cases of nickel and gold plating while the second technique improved the hard chromium process.