Influence of Saccharin and 2-Butyne-1,4diol on the Electrodeposition of Zn-Ni Alloys Coatings: Application of a Mixture Design
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Date
2025
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Portugaliae Electrochimica Acta
Abstract
Herein, electrodeposition of Zn-Ni alloy thin films on CS substrates under various conditions, from sulfate baths containing Na3C6H5O7, C7H5NO3S, and 2-butyne-1,4diol, was studied. So as to have the best bath composition, a mixture design application was examined. The best obtained composition was: 0.3 M Na3C6H5O7-, 0.1 g/L C7H5NO3S and 0.1 g/L 2-butyne-1,4-diol, for theoretical and experimental responses of 215.22 and 221.60 HV, respectively. Zn-Ni coating morphological properties and composition were examined by SEM and EDS. It was found that, on optimal conditions, a significant decrease in the grain size occurred. The deposits were homogeneous, uniform, compact and fine-grained, without any pores at the surface
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Portugaliae Electrochimica Acta 43 (2025) 101-111
https://doi.org/10.4152/pea.2025430202