Synthesis and Properties of Pulse Electrodeposited Ni-CeO2 Nanocomposite

Ni-CeO2 nanocomposite coatings were pulse electrodeposited from the Watt’s electrolyte containing different concentrations of nanosized CeO2 particles (10, 20, 30, 40, and 50 g/L). The microhardness, thermal stability, and corrosion resistance of these coatings were evaluated and compared with those of pure nanocrystalline Ni deposited under the same conditions. The results show that the Ni-CeO2 nanocomposite coating, synthesized from the electrolyte containing 30 g/L CeO2, has significantly higher hardness, thermal stability, and corrosion resistance than those of the pure nanocrystalline Ni and other Ni-CeO2 nanocomposite coatings.