Normal Electrochemical Deposition of NiFe Films : An Experimental Investigation

Abstract

The deposition behaviour of Fe-Ni alloys was examined using galvanostatic electrodeposition in chloride solutions with pH 1.5–2.5 at 70°C. Anomaly codeposition was caused by the presence of hydroxide iron in the electrolyte. Boric acid and filtering were used to remove hydroxide iron precipitates. Hydrochloric acid hindered the production of iron ions, Fe3+. The chloride electrolyte provides stability and prevents anomalies from forming. Changing the current procedure has no discernible effect on the iron and nickel levels of the film. When the contents of iron and nickel change due to additions in the electrolyte, the current value is chosen to modify the film's content. With appropriate electrolyte compositions and films, FeNi is deposited in a consistent manner. anomalous codeposition behavior in Fe-Ni alloy deposition was evidently dependent on the pH buffer capacity of the solutions.