Production of tungsten oxide coatings, via sol-gel processing of tungsten anion solutions

A. P. Baker, Simon Hodgson, Mohan Edirisinghe

    Research output: Contribution to journalArticlepeer-review

    Abstract

    An investigation has been carried out into the production of tungsten oxide coatings from tungstic chloride and tungstic acid precursors, via a sol-gel type process, using various combinations of ethanediol and block co-polymers as stabilising additives to achieve microstructural control. The products were characterised by scanning electron microscopy, X-ray diffraction, FTIR spectroscopy and thermal analysis, with colour changes investigated by UV/Vis spectroscopy. Strongly photochromic transparent coatings were successfully prepared by the reaction of tungstic acid under basic conditions in the presence of ethanediol.
    Original languageEnglish
    Pages (from-to)184-193
    Number of pages9
    JournalSurface and Coatings Technology
    Volume2
    Issue number3
    DOIs
    Publication statusPublished - 2002

    Bibliographical note

    An investigation has been carried out into the production of tungsten oxide coatings from tungstic chloride and tungstic acid precursors, via a sol-gel type process, using various combinations of ethanediol and block co-polymers as stabilising additives to achieve microstructural control. The products were characterised by scanning electron microscopy, X-ray diffraction, FTIR spectroscopy and thermal analysis, with colour changes investigated by UV/Vis spectroscopy. Strongly photochromic transparent coatings were successfully prepared by the reaction of tungstic acid under basic conditions in the presence of ethanediol.

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