The effect of aluminium nanocoating and water pH value on the wettability behavior of an aluminium surface

摘要: Abstract Experimental investigation was performed to highlight the influence of ionic bounding and surface roughness effects on wettability. Nanocoating technique via e-beam physical vapor deposition process used fabricate aluminium (Al) film 50, 100, 150 nm an Al substrate. Microstructures samples before after were observed using atomic force microscopy. A goniometer device later examine topography deionised water pH 4, 7 9 droplets at a temperature ranging from 10 °C 60 °C through their contact angles with substrate surface, for both coated uncoated samples. It found that, although layer has reduced mean sample 10.7 nm 4.23 nm, by filling part microstructure gaps nanoparticles, wettability is believed be effected bounds between free anions in fluid. As gave increase average thickness. On other hand, showed negative relation thickness, where angle as thickness increased. The results aforementioned approach had that nanocoating can endorse hydrophobicity (unwitting) nature when associated ions hosted liquid.