STRUCTURAL AND ELECTROCHEMICAL PROPERTIES OF THIN LAYERS OF BINARY Ni–Fe ALLOYS ELECTRODEPOSITED BY TWO DIFFERENT BATHS: ACID AND IONIC LIQUID

Rafik Maizi, Athmane Meddour and Céline Rousse
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Rafik Maizi: Laboratoire de physique des matériaux L2PM, Université du 8 mai 1945 Guelma, B.P. 401, 24000 Guelma, Algérie
Athmane Meddour: Laboratoire de physique des matériaux L2PM, Université du 8 mai 1945 Guelma, B.P. 401, 24000 Guelma, Algérie
Céline Rousse: #x2020;LISM EA 4695, UFR Sciences Exactes et Naturelles, B.P.1039, 51687 Reims Cedex 02, France

Surface Review and Letters (SRL), 2018, vol. 25, issue 08, 1-7

Abstract: The deposition of Ni–Fe thin layers in boric acid and ionic liquid ([BuMePyr][Tf2N]) baths were successfully prepared. The obtained materials have been characterized by X-ray diffraction (XRD), Energy Dispersive X-ray spectroscopy (EDX) and SEM. Meanwhile, these materials were carried out by chronoamperometry or chronopotentiometry by varying the intensity of the current and the deposition potential. The results indicate that the coatings of Ni–Fe alloys were successfully obtained by electroplating on the copper substrates, and the alloys composition shows irregular behavior with polarization. The nickel content in the samples is in the range of 55–90%, but the iron content ranges from 10–30%, when potential deposits were varied from −2V to −4V vs Ni electrode. The results also showed that the thin layers are monophased; they contain the Ni3Fe phase. Further, SEM images of Ni–Fe alloys show the different shapes of particles.

Keywords: Electrodeposition; boric acid; ionic liquid; cyclic voltammetry; Ni–Fe alloys; Ni3Fe phase (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1142/S0218625X19500252

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