- International Journal of Chemistry and Technology
- Cilt: 7 Sayı: 2
- Planning and processing of Zn-Ni alloy thin film by electrodeposition
Planning and processing of Zn-Ni alloy thin film by electrodeposition
Authors : Hawa Bendebane, Salima Bendebane, Samia Amirat, Rabah Rehamnıa
Pages : 162-170
Doi:10.32571/ijct.1230422
View : 48 | Download : 79
Publication Date : 2023-12-31
Article Type : Research
Abstract :This work aims to improve and characterize a Zn-Ni alloy thin film from a sulfated bath by an electrochemical process. Experimental planning was applied using Minitab 19. For the selection of the best bath composition, a mixture design was applied. It was found that the best bath composition is [boric acid] = 0.1M, [saccharin] = 0.3 g/L, and [2-butene-1,4-diol] = 0.1 g/L. In order to optimize the best experimental conditions to have a better coating an application of the Box-Behnken design has been examined. Temperature, current density, and the ratio [Ni2+]/[Zn2+] are the various parameters. It was found that the best coating in terms of quality, corrosion resistance, brightness, and hardness was obtained under the following conditions: T= 30°C; i= 0.5A/dm2 and [Ni2+]/[Zn2+] = 0.53 with a theoretical response of 312.66 HV and an experimental response of 312.30 HV.These results were confirmed by morphological (SEM) and elemental (EDS) analyses.Keywords : Electrodeposition, Zn-Ni alloy, thin film, experimental design, mixture design, Box-Behnken, microhardness.