The Effect of TAUNIT Carbon Nanotubes on the Properties of Electroplating and Anodic Oxide Coatings

D.N. Simagin, A.A. Gravin, V.Yu. Kulakov, Yu.V. Litovka, E.A. Dyakov
2016 Advanced Materials & Technologies  
The properties of the coatings produced by electrodeposition from electrolytes containing TAUNIT carbon nanotubes have been studied. The technology of zinc depositing from electrolytes with nanocarbon additives to increase the resistance to corrosion has been developed. Due to the fact that carbon nanotubes appear to be additional crystallization centers, the crystal size of the coating is reduced. The potentiodynamic method for determining the corrosion rate shows that the corrosion rate
more » ... ses fourfold, provided the concentration of TAUNIT carbon nanotubes in the electrolyte is 100 mg/l. It is suggested that the improved corrosion resistance is due to a change in the structure of zinc coating. It is found that anodic oxidation in electrolytes containing TAUNIT CNTs leads to a change in the morphology of coatings and improves heat-release properties in air. The effect of different concentrations of CNTs in silver plating electrolyte on the characteristics of coatings has been described. The study of nanomodified palladation electroplating has revealed the effect of different CNT concentrations in palladation electrolyte on the microstructure and mechanical properties of coatings.
doi:10.17277/amt.2016.02.pp.035-042 fatcat:bvjr7cqvgfaqlollru2cd65iau