Deposition of Ni- CO/TiO2 Nanocomposite Coating by Electroplating

Ni – CO alloys have been prepared by codeposition with different contents of TiO2 particles onto copper plate in a nickel plating bath. The influences of TiO2 particles concentration, current density, temperature, PH and additives on the composition of coatings were investigated. The morphology and chemical composition of composite coatings were studied by (SEM) coupled with (EDS) energy dispersive spectrometer and examine the coatings microhardness. The results reveal TiO2 particles were uniformly distributed into Ni–CO alloy and significantly improve the microhardness of the coatings.