Production and characterization of Ni and Cu composite coatings by electrodeposition reinforced with carbon nanotubes or graphite nanoplatelets

Electrodeposition is well-known as a versatile and economical processing technique to produce metal coatings on conductive substrates. Recently, it has been gaining increasing interest also for the production of tailored composite coatings, containing for instance floropolymers or silicon carbide. A...

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Published inJournal of physics. Conference series Vol. 439; no. 1; pp. 12019 - 8
Main Authors Karim, M R Abdul, Pavese, M, Ambrosio, E P, Ugues, D, Lombardi, M, Biamino, S, Badini, C, Fino, P
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2013
Subjects
Carbon
CARBON BASE MATERIALS
Carbon nanotubes
Coated electrodes
COATINGS
Composite coatings
Copper
Dispersion
Electrodeposition
ELECTRODES
Graphene
Graphite
Metal coatings
MICROSTRUCTURES
Nanocomposites
Nanomaterials
Nanostructure
Nickel
Physics
Platelets (materials)
REINFORCEMENT
Silicon carbide
Substrates
Thermal diffusivity
TUBE
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Summary:Electrodeposition is well-known as a versatile and economical processing technique to produce metal coatings on conductive substrates. Recently, it has been gaining increasing interest also for the production of tailored composite coatings, containing for instance floropolymers or silicon carbide. A more novel approach concerns the use of carbon nanotubes or even graphene, in the form of graphite nano-platelets. The production of Ni- and Cu-based nanocomposites containing carbon nanoreinforcements was carried out by using standard electrodeposition conditions, but with a particular attention to the dispersion of the nanotubes. The obtained coatings were strong and well adherent to the steel substrate, and presented rather well dispersed carbon nanotubes or graphite nanoplatelets, even if some agglomerates could be present in samples obtained from highly concentrated suspensions. In the case of nickel-based composite coatings, the size of nickel grains was reduced, and pin-on-disc tests demonstrated a significant increase in the life of the coating. In the case of copper-based composite coatings, thermal diffusivity measurements demonstrated that the carbon nanomaterial does not reduce the conductivity of the pure copper coating.
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ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/439/1/012019