The effects of chemical parameters and topography on the properties of the hybrid sol-gel coatings

Juha Nikkola, Marke Kallio, Juha Mannila, Anne Pahkala, Mika Kolari, Riitta Mahlberg, Olli Posti, Amar Mahiout

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    1 Citation (Scopus)

    Abstract

    Corrosion, fouling and wearing of metal surfaces are the most common problems that can cause a decrease in the use value of metal products and therefore financial losses in the metal industry.For this reason, nanoscale hybrid sol-gel coatings have been developed to protect metal surfaces.The aim of this research was to study the effects of chemical parameters and topography on the properties of the sol-gel coating developed by VTT.The inorganic-organic sol-gel coating was studied as such and as coated on stainless steel and copper substrates.The early-stage sol-gel reactions were examined with ATR-FTIR and with measurements of surface tension of the sol. FTIR and DSC were used to determine thermal curing processes.Topography of the sol-gel coating was studied by using profilometry and coating thickness measurements.In addition, surface properties of the sol-gel coating were examined.The sol-gel chemistry characterizations gave information about the phases of sol-gel reactions.Moreover, the topography measurements indicated changes in surface roughness of the thin film during the ageing process of the sol.On the basis of the important information obtained in this study, the protective properties of sol-gel coatings can be tailored for different purposes.
    Original languageEnglish
    Title of host publicationApplied Material Research at VTT
    Subtitle of host publicationSymposium on Applied Materials
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Pages154-165
    ISBN (Electronic)951-38-6312-3
    ISBN (Print)951-38-6311-5
    Publication statusPublished - 2006
    MoE publication typeB3 Non-refereed article in conference proceedings
    EventInternal Symposium on Applied Materials - Espoo, Finland
    Duration: 8 Jun 20068 Jun 2006

    Publication series

    SeriesVTT Symposium
    Number244
    ISSN0357-9387

    Conference

    ConferenceInternal Symposium on Applied Materials
    CountryFinland
    CityEspoo
    Period8/06/068/06/06

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