2. INVESTIGATION OF 3D PROFILES

A geometry analysis has been conducted of 3D profi les of slices of surfaces of coatings produced by the method of air-plasma spraying of zirconium oxide ZrO₂ powder. Correlation between the equilibrium angle of wetting a water droplet and the ratio of surface roughness degrees at mini- and microlevels detected earlier in analysis of similar 2D profi les has been confi rmed. A possibility of producing ultrahydrophobic and hydrophilic coatings of various spraying regimes has been predicted.
A geometry analysis has been conducted of 3D profi les of slices of surfaces of coatings produced by the method of air-plasma spraying of zirconium oxide ZrO₂ powder. Correlation between the equilibrium angle of wetting a water droplet and the ratio of surface roughness degrees at mini- and microlevels detected earlier in analysis of similar 2D profi les has been confi rmed. A possibility of producing ultrahydrophobic and hydrophilic coatings of various spraying regimes has been predicted.
Author:  A. P. Yankovskii, I. P. Gulyaev, O. B. Kovalev
Keywords:  air-plasma spraying, roughness, zirconium oxide, wetting angles, hydrophobicity, hydrophilicity, geometry analysis of a surface
Page:  1580