Electrochimica Acta, Vol.39, No.6, 801-805, 1994
Studies of Electrodeposited Chromium Cobalt Alloy Coatings by Emission Co-57 Mossbauer-Spectroscopy
Deposit of chromium-cobalt (Cr-Co) alloys have been prepared by direct current (dc) electrodeposition from chromium(III)-dimethylformamide based electrolyte. By changing two electrolysis parameters (current density and electrolyte temperature) alloys of various cobalt content were obtained. Mossbauer spectroscopy (MS) measurements revealed that cobalt rich deposits (up to 80 w/o) consisted of a single ferromagnetic phase, an alloy of about 44 w/o cobalt contained a mixture of ferromagnetic phase and the paramagnetic phase. Measurements indicated that alloys with high chromium content (72-82 w/o) consisted of a single paramagnetic Co/Cr phase.