Robust Hydrophobic Surfaces from Suspension HVOF Thermal Sprayed Rare-Earth Oxide Ceramics Coatings.

ABSTRACT: This study has presented an efficient coating method, namely suspension high velocity oxy-fuel (SHVOF) thermal spraying, to produce large super-hydrophobic ceramic surfaces with a unique micro- and nano-scale hierarchical structures to mimic natural super-hydrophobic surfaces. CeO₂ was selected as coatings material, one of a group of rare-earth oxide (REO) ceramics that have recently been found to exhibit intrinsic hydrophobicity, even after exposure to high temperatures and abrasive wear. Robust hydrophobic REO ceramic surfaces were obtained from the deposition of thin CeO₂ coatings (3-5 μm) using an aqueous suspension with a solid concentration of 30 wt.% sub-micron CeO₂ particles (50-200 nm) on a selection of metallic substrates. It was found that the co

SUBMITTER: Bai M 

PROVIDER: S-EPMC5934356 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature