The phase structure and morphology of electrodeposited nickel-cobalt alloy powders

• DOI: 10.2298/sos1103313s
• Publication Date: 2012-02-13T13:29:31Z
• Authors: M. Spasojevic; L. Ribic-Zelenovic; A. Maricic
• Keywords: Nanocrystalline material; Morphology; Deposition

Cobalt and nickel powders of three different compositions: Ni0.8Co0.2, Ni0.55Co0.45 Ni0.2Co0.8 were obtained by electrodeposition from an ammonium chloride-sulphate solution. It was shown that the microstructure morphology depended on deposition current density as well bath composition. Amorphous powder Ni0.8Co0.2 at higher than 200 mA cm-2, but nanocrystalline having same composition densities lower mAcm-2. The with Ni contents (0.55 0.2) a ranging 40 cm-2 to 450 solid solutions two phases, FCC (?-Ni) HCP (?-Co) ones. increase phase in result both Co content decrease density.