标题：Effects of elevated temperature on the corrosion resistance of silver–cobalt oxide–titanium dioxide (Ag/Co 3O 4/TiO 2) nanocomposites coating on AISI 1020
摘要：The effects of temperature on corrosion resistance of Silver–Cobalt oxide and Titanium Dioxide (Ag/Co
3O
4/TiO
2) nanocomposite coated AISI 1020 in a high-temperature environment was investigated. The Ag, Co
3O
4 and TiO
2 nanoparticles were individually produced by mixing the salt precursors with extract of
Piptadeniastrum Africana leaf under the optimized synthesis conditions. The nanocomposite was produced by mixing Ag, Co
3O
4 and TiO
2 nanoparticles (NPs) in equal proportions to constitute 75 wt% of the composite. 10 wt% epoxy resin and its hardener in the ratio (1:1) were added to serve as the binder, while 15 wt% of CNT was introduced to serve as support. The produced Ag/Co
3O
4/TiO
2 nanocomposite was coated on the surface of mild steel (AISI 1020) by the dipping method. The coated samples were heated in a muffle furnace to 35, 100, 200, and 300 °C. Microstructural evolution of the coatings was investigated using X-ray diffraction, scanning electron microscopy and energy dispersive spectrometer. The corrosion resistance of the coated and heated and un-heated steel samples was determined using the potentiodynamic polarization method. The results show that Ag/Co
3O
4/TiO
2 nanocomposite coated sample cured at 100 °C exhibited the highest corrosion resistance of 195.12 Ω.
