A Study of the Optimal Composition of the Bath Used for the Electrodeposition of Invar Alloy Thin Films

Abstract:

Ni-Fe alloys ranging in composition of Fe rich invar (Ni100-xFeX, where x ~ 64), have a variety of high technology applications due to their wide spectrum of physical properties. In this paper, the effects of the applied potential (-1.20V, -1.35V) and the bath composition (0.1M, 0.01M) of the Ni-Fe alloy thin films are studied. Ni100-xFeX layers were electrodeposited onto Copper substrates with a pH of about 2.5. The experiments were performed at room temperature and the deposition time was equal to 10mn for all deposited samples. The experiments were performed using electrochemical techniques, by means of cyclic voltammetry (CV) and chronoamperometry (CA). The morphology and elemental composition of the deposited films were studied by means of electron microscopy coupled to EDS analysis.

• Periodical: Key Engineering Materials (Volume 495)
• Pages: 319-322
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.495.319
• Online since: November 2011
• Authors: Hadria Medouer, Mosbah Daamouche, Abderrahim Guittoum, Saci Messaadi, Stefania Haido Karagianni
• Keywords: Bath Compositions, Chronoamperometry, Cyclic Voltammetry (CV), Invar Alloy, Morpholoy

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