Properties Of Nickel Coatings Research Articles

СВОЙСТВА НИКЕЛЕВЫХ ПОКРЫТИЙ, ПОЛУЧЕННЫХ В ПРИСУТСТВИИ ТРИФЛАМИДОВ

The influence of fluorine-containing compounds (triflamides) in sulfuric acid electrolyte and electroly-sis modes on the properties of nickel coatings has been studied

Effect of Versenium Hydrogensulfate on Properties of Nickel Coatings.

The salt of formula [H2EDTA2+][HSO4-]2 (dihydrogen ethylenediaminetetraacetate di(hydrogen sulfate(VI)) was used to examine the physicochemical properties of the resulting Ni layer and evaluate the applicability of the salt as a new additive for Watts-type baths. The Ni coatings deposited from baths containing [H2EDTA2+][HSO4-]2 were compared with those obtained from other baths. The nucleation of nickel on the electrode was proven to occur the slowest in the bath that contained the mixture of [H2EDTA2+][HSO4-]2 and saccharin compared with other baths. The addition of [H2EDTA2+][HSO4-]2 alone (bath III) generated a coating with a morphology similar to that obtained from bath I (without additives). Despite the similar morphology and wettability of the Ni-coated surfaces plated from various baths (all Ni coatings were hydrophilic with contact angles in the range of 68 to 77°), some differences in electrochemical properties were noted. The corrosion resistance for the coatings plated from baths II and IV containing saccharin (Icorr = 1.1 and 1.5 µA/cm2, respectively) and the mixture of saccharin and [H2EDTA2+][HSO4-]2 (Icorr = 0.88 µA/cm2), respectively, was similar or even better than the coating obtained from baths without [H2EDTA2+][HSO4-]2 (Icorr = 9.02 µA/cm2).

Influence of Bath Composition on the Structure and Properties of Nickel Coatings Produced by Electrodeposition Technique

Influence of Bath Composition on the Structure and Properties of Nickel Coatings Produced by Electrodeposition Technique

The Effect of Surfactant Mixtures of Several Reaction Series on Electrochemical Characteristics of Nickel Deposition and Properties of Nickel Coatings

Peculiarities of nickel electroplating from a standard electrolyte in the presence of a mixture of substances from several reaction series are shown to fit in with the linear Gibbs Energy relation as regards both the reaction rates and equilibria.

Structure and properties of nickel coatings after heat treatment

Structure and properties of nickel coatings after heat treatment