Abstract
The electrodeposition of FeNi alloy films was performed galvanostatically in the sulfate solution (Fe2+/Ni2+ mass ratio 1:2) in order investigate their co-deposition mechanism. The FeNi layers were deposited at variable substrates (copper, brass, silver) under the same chemical (electrolyte composition) and electric plating (current density value) conditions. After applying various time, substrates and external magnetic field orientation, the quality of the obtained film was examined. The surface morphology and crystallographic texture variation were investigated by the Scanning Electron Microscope (SEM), Energy Dispersive X-ray Spectroscopy (EDX), Wavelength Dispersive X-ray Fluorescence (WDXRF) and Laser Confocal Scanning Microscope (LCSM). The anomalous co-deposition of iron group metals is evidently dependent on the substrate.
Highlights
The electrodeposition of FeNi alloy films was performed galvanostatically in the sulfate solution (Fe2+/ Ni2+ mass ratio 1:2) in order investigate their co-deposition mechanism
The layers deposited on the copper substrate without using the external magnetic field (EMF) looked similar to the silver deposit under the same conditions
The third case (I_EMF) was the reason for the creation of 3D growth centers scattered over the entire surface of the sample[25]
Summary
The electrodeposition of FeNi alloy films was performed galvanostatically in the sulfate solution (Fe2+/ Ni2+ mass ratio 1:2) in order investigate their co-deposition mechanism. The electrodeposition technique allows to fabricate the alloys under normal conditions of temperature and pressure which are easy to control. This requires relatively cheap equipment, which implies low production costs and allows for nanostructuration. As a result, these parameters allow to obtain materials with specific, tailored properties of the grown nanomaterials. The properties of the obtained layers depend primarily on basic conditions of the process itself: plating bath chemistry, bath pH, temperature, agitation (the chemical conditions), and the conditions at the cathode surface, current density, current characteristics, potential (the electric conditions)[8,9,10,11]. The external magnetic field influences the convection in the case of a mutual perpendicular position between the electric and magnetic field lines, which has been proven[13,17,18]
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