Eingang zum Volltext in SciDok
Lizenz
Aufsatz zugänglich unter
Sol-gel coatings for chemical protection of stainless steel
URN: urn:nbn:de:bsz:291-scidok-23747
URL: http://scidok.sulb.uni-saarland.de/volltexte/2009/2374/
Quelle:
(1994) Journal of sol-gel science and technology. - 2. 1994, S. 529-534
pdf-Format:
Dokument 1.pdf (551 KB)
SWD-Schlagwörter:
Sol-Gel-Verfahren , Beschichtung , Edelstahl , Tauchbeschichten , Elektrochemische Polarisation , Chemikalienbeständigkeit
Institut:
DDC-Sachgruppe:
Naturwissenschaften
Dokumentart:
Aufsatz
Sprache:
Englisch
Erstellungsjahr:
1994
Publikationsdatum:
07.09.2009
Kurzfassung auf Englisch:
Sol-gel thin coatings of ZrO2, SiO2, 70SiO2-30TiO2 and 88SiO2-12Al2O3 compositions (mole %) have been prepared from sonocatalyzed sols and deposited by dip-coating technique on 316L stainless steel foils. The influence of the coatings on the chemical corrosion of the substrate has been measured through potentiodynamic polarization curves in aqueous 15% H2SO4 solution between 25 and 50°C. The values of the corrosion potential, polarization resistance and corrosion rate have been determined. Analysis of the data combined with scanning electron microscopy studies indicate that the films act as a geometric blocking against exposure to the corrosive media and increase the lifetime of the substrate up to a factor 8.5.
Lizenz:
Standard-Veröffentlichungsvertrag