Fabrication and characterization of Ni-TiO_2 nanocomposite coatings and their corrosion resistance behaviors

摘要

Ni-TiO_2 nanocomposite coatings have been successfully fabricated via a routf electrodeposition from nickel Watts bath containing nano-TiO_2 particles, and characterized ty scanning electron microscopy (SEM), X-ray diffraction(XRD), energy dispersive X-ray spectroscop; (EDS)and electrochemical techniques. The influence of preparation parameters on the properties o the coatings were investigated. The obtained results indicated that nano-TiO_2 particles wen distributed uniformly in the Ni matrix. It was found that the Ni-TiO_2 nanocomposite coating: exhibited more excellent corrosion resistance and microhardness in comparison with pure nicke coating.