Integration of MoO2 Composite on the Micro-evolution and Anticorrosion Mitigation of Zn–Ni–MoO2 Thin Films Coating by Electrodeposition System
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Zinc–nickel–molybdenum nano-composite coating was deposited on carbon steel substrate using electrolytic deposition technique. The MoO2 integration into zinc–nickel matrix was investigated with reverence to particulate concentrations from 10 to 15 g/L, voltage 5–1.0 V and 1 A/dm2. The effect of the percentage variation of MoO2 particle inclusion into the zinc–nickel lattices’ was seen, and surface morphology, with intermetallic phase transformation of the nano-composite were obtained using scanning electron microscopy coupled with energy dispersive spectroscopy. The corrosion behaviour and micro-hardness characteristics of the Zn–Ni–MoO2 composite deposits were studied using linear polarization technique. The result shows that the incorporation of MoO2 particles into the zinc–nickel matrix disperses evenly with increasing concentration of MoO2 particle and significantly modified the crystal orientation of the Zn–Ni–MoO2 deposit. A content of 10 g vol.% MoO2 particle incorporated Zn–Ni–MoO2 nano-composite deposit was found to obtained good corrosion, wear and better micro-hardness properties.
KeywordsElectrochemistry Heat resistance Molybdenum oxide
The authors would like to acknowledge the Surface Engineering Research Centre Staff, TUT for the experimental equipment and the financial support from National Research Foundation.
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