Please use this identifier to cite or link to this item: doi:10.22028/D291-24249
Title: Ormocer (ZrO2-PMMA) films for stainless steel corrosion protection
Author(s): Luna, Fernando P.
Atik, Mohamed
Messaddeq, Sandra H.
Aegerter, Michel A.
Language: English
Year of Publication: 1997
OPUS Source: Journal of sol-gel science and technology. - 8. 1997, S. 517-522
SWD key words: Edelstahl
DDC notations: 620 Engineering and machine engineering
Publikation type: Journal Article
Abstract: The chemical protection of 316 L stainless steel coated with ORMOCER coatings of polymethylmethacrylate (PMMA) and ZrO2 has been verified. The coatings were dip-coated on the substrates from sols prepared by mixing zirconium propoxide (ZrOC3H7)4, isopropanol (C3H7OH), glacial acetic acid (CH3COOH), polymethylmethacrylate and water under application of ultrasounds. The films were heat treated between 40 and 300°C in air up to 20 h. Their morphology was studied by electron scanning microscopy (SEM). Their anticorrosion behaviour was analysed in 0.5M-H2SO4 solutions through potentiodynamic polarization curves at room temperature. The influence of the sol preparation, coating composition as well as of the duration and temperature of heat treatments on the corrosion parameters is reported. The films act as geometric blocking layers against the corrosive media and increase the lifetime of the substrate up to a factor 30.
Link to this record: urn:nbn:de:bsz:291-scidok-24904
Date of registration: 4-Dec-2009
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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