Composite Electrodeposition to Obtain Nanostructured Coatings

Lidia Benea (1) , Pier Luigi Bonora (2) , Alberto Borello (3) , Stefano Martelli (3) , François Wenger (4) , Pierre Ponthiaux (4) , Jacques Galland

1 Dunărea de Jos University of Galați [Romania]
2 UNITN - Università degli Studi di Trento = University of Trento
3 ENEA - Italian National agency for new technologies, Energy and sustainable economic development [Frascati]
4 LGPM - Laboratoire de Génie des Procédés et Matériaux - EA 4038

Nanocomposite coatings are obtained by electrochemical deposition of silicon carbide nanoparticles (mean diameter 20 nm) in a nickel plating bath. The influence of nanoparticles on nickel electroplating is studied by electrochemical impedance spectroscopy at cathodic potential, and cathodic polarization diagrams are performed in the electrolyte with and without nanoparticles. We show that incorporation of 20 nm SIC particles into nickel deposits modifies the impedance and cathodic polarization diagrams in correlation with the modification of the surface morphology and crystallinity of the nickel matrix. (C) 2001 The Electrochemical Society.

Mots clés: NICKEL ELECTRODEPOSITION; PARTICLES; DEPOSITION; KINETICS

Domaines: Matériaux

Lidia Benea, Pier Luigi Bonora, Alberto Borello, Stefano Martelli, François Wenger, et al.. Composite Electrodeposition to Obtain Nanostructured Coatings. Journal of The Electrochemical Society, 2001, 148 (7), pp.C461-C465. ⟨10.1149/1.1377279⟩. ⟨hal-01254630⟩