Electrodeposition of Thick SmCo Films: Influence of Current Density and Time Deposition

Electrodeposition of SmCo in aqueous solution has been studied using a Hull cell. Different concentrations of cobalt ion in the electrolyte, addition of supporting electrolyte and different deposition time have been tested. High samarium contents and thicknesses have been obtained: up to 50 % of Sm in the deposit and several microns. The oxygen contamination is linked to the samarium content and two elaboration parameters have been targeted for limiting this contamination: addition of supporting electrolyte and long deposition time.