Bitte benutzen Sie diese Referenz, um auf diese Ressource zu verweisen: doi:10.22028/D291-24049
Titel: Corrosion resistant sol-gel ZrO2 coatings on stainless steel
Verfasser: Atik, Mohamed
Aegerter, Michel A.
Sprache: Englisch
Erscheinungsjahr: 1992
Quelle: Journal of non-crystalline solids. - 147/148. 1992, S. 813-819
SWD-Schlagwörter: Korrosion
Edelstahl
Sol-Gel-Verfahren
Zirkonium
Alkoholate
Propanole
Alkohol
DDC-Sachgruppe: 620 Ingenieurwissenschaften und Maschinenbau
Dokumentart : Journalartikel
Kurzfassung: Corrosion resistant ZrO2 coatings on 316L stainless steel sheets have been fabricated utilizing sonocatalysis of precursors sols. The solutions were prepared from zirconium alkoxide Zr(OC3H7)4, isopropanol alcohol, glacial acetic acid and water, and submitted to ultrasonic agitation. Their composition varied between 0.025 and 0.9 mol/l ZrO2. Single thin films were thermally treated between 40 and 1100°C in unoxidizing atmosphere. The coatings characteristics were determined by X-ray diffraction, optical reflection, ellipsometry and scanning electron microscopy. At temperatures higher than 700°C, the films are polycrystalline with a tetragonal structure and show a blue-green color. Depending on the composition, the thickness varied from 5.5 to 35 nm. When treated under a slow and controlled heating rate, the ZrO2 films with the smallest thickness show outstanding corrosion resistance to acid attack and to oxidation as no weight change was observed after 30 h treatment in H2SO4 at 81°C or 10 h treatment in air at 800°C. The thicker films as well as the films treated with a rapid heating rate tend to crack during the densification process and are less corrosion resistant. © 1992 Elsevier Science Publishers B.V. All rights reserved.
Link zu diesem Datensatz: urn:nbn:de:bsz:291-scidok-21811
hdl:20.500.11880/24105
http://dx.doi.org/10.22028/D291-24049
SciDok-Publikation: 2-Jul-2009
Fakultät: Sonstige Einrichtungen
Fachrichtung: SE - INM Leibniz-Institut für Neue Materialien
Fakultät / Institution:INM
SE - Sonstige Einrichtungen

Dateien zu dieser Ressource:
Datei Beschreibung GrößeFormat 
aeg174.pdf2,37 MBAdobe PDFÖffnen/Anzeigen


Alle Ressourcen in diesem Repository sind urheberrechtlich geschützt.