Superhydrophobicity and water repelling characteristics of thermally sprayed titanium dioxide

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TypeArticle
Journal titleJournal of thermal spray technology
Volume
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AbstractThe wetting behavior (hydrophobicity/hydrophilicity) of atmospheric plasma sprayed (APS) and suspension plasma sprayed (SPS) TiO2 coatings was investigated. The effect of different spraying process parameters on the water contact angle (WCA) of these coatings was studied using a Taguchi method for design of experiments. It was found that by controlling the spraying parameters, coatings can be developed with WCAs as high as 140° despite the natural hydrophilicity of TiO2. SEM imaging showed that these coatings have a hierarchical (dual scale) roughness that provides the hydrophobicity of their surface by enhancing water repellency and mobility on the surface.
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LanguageEnglish
AffiliationNational Research Council Canada; Automotive and Surface Transportation
Peer reviewedYes
NRC numberNRC-ATS-145128
NPARC number21272047
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Record identifier8d9db137-0a89-4eef-9714-effbfd5679d6
Record created2014-05-23
Record modified2016-05-09
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