Abstract
Hybrid nanocomposite epoxy-based coatings containing ZrO2, ZnO and Fe2O3 nanoparticles (≤50nm) were deposited on Grade A naval steel substrates by dip-coating technique. The surface morphology and the mechanical properties of coated steel samples were analyzed by optical microscopy and CETR tribometer, respectively. The mechanical measurements showed that 1wt. % doping metal oxides nanoparticles significantly affect the mechanical behavior of coatings in terms of microhardness and friction coefficient. Best results were obtained in the case of Fe2O3 and ZrO2 doping, for which were obtained microhardness in the range of 90-120MPa and 142 MPa, respectively. Regarding the friction coefficient, values in the range of 0.02-0.08 were obtained
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