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Microstructure and performance of titanium oxide coatings sprayed by oxygen-acetylene flame

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    0360317 - ÚFP 2012 RIV FR eng J - Journal Article
    Ctibor, Pavel - Štengl, Václav - Zahálka, F. - Murafa, Nataliya
    Microstructure and performance of titanium oxide coatings sprayed by oxygen-acetylene flame.
    Photochemical & Photobiological Sciences. Roč. 10, č. 3 (2011), s. 403-407. ISSN 1474-905X. E-ISSN 1474-9092
    R&D Projects: GA AV ČR IAAX00430803
    Institutional research plan: CEZ:AV0Z20430508; CEZ:AV0Z40320502
    Keywords : Plasma spraying * flame spraying * photocatalysis * TiO2
    Subject RIV: JH - Ceramics, Fire-Resistant Materials and Glass
    Impact factor: 2.584, year: 2011

    TiO2 nano-powders were agglomerated by a spray drying process for applying to thermal spraying. A conventional oxygen-acetylene flame torch was used to deposit porous partially nanostructured TiO2 coatings. Steel substrates were used as a support for tested samples. Scanning Electron Microscopy, X-ray microanalysis and X-ray diffraction were performed to study the morphology and the crystalline phases of the titania coatings. Optical bandgap and kinetics of the acetone decomposition was studied too. The best results were obtained for the powder which is available as a commercial spray feedstock. This powder seems to be most resistant against the reducing atmosphere in the jet of combustive gasses.
    Permanent Link: http://hdl.handle.net/11104/0197894

     
     
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