Surfactants Effect on Zn–Si3N4 Coating, Electrochemical Properties, and Their Corrosion Behaviors

Autor: Praveenkumar C. Mohankumar, Venkatarangaiah T. Venkatesha
Rok vydání: 2013
Předmět:
Zdroj: Industrial & Engineering Chemistry Research. 52:12827-12837
ISSN: 1520-5045
0888-5885
Popis: The effect of sodium dodecyl sulfate (SDS) and cetyl trimethyl ammonium bromide (CTAB) on electrodeposited Zn-Si3N4 composite coating, on a mild steel substrate, was examined. The cathodic polarization and cyclic voltammetric techniques were adopted to understand the role of surfactants. The structure and morphology of the coatings were studied by X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray analysis. The influence of Si3N4 and surfactants on the preferred orientation of Zn was examined on X-ray diffraction data. The nucleation mechanism of Zn and the Zn+Si3N4 composite in the presence of SDS and CTAB was examined. The corrosion resistance properties of Zn and Zn–Si3N4 coatings were measured.
Databáze: OpenAIRE