Electrochemical anticorrosion performance evaluation of Al2O3 coatings deposited by MOCVD on an industrial brass substrate (Articolo in rivista)

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Label
  • Electrochemical anticorrosion performance evaluation of Al2O3 coatings deposited by MOCVD on an industrial brass substrate (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.electacta.2004.10.091 (literal)
Alternative label
  • Francesca Guidi; Giuseppe Moretti; Giovanni Carta; Marco Natali; Gilberto Rossetto; Pierino Zanella; Guido Salmaso; Valentino Rigato (2005)
    Electrochemical anticorrosion performance evaluation of Al2O3 coatings deposited by MOCVD on an industrial brass substrate
    in Electrochimica acta; Academic Press Elsevier, Amsterdam (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Francesca Guidi; Giuseppe Moretti; Giovanni Carta; Marco Natali; Gilberto Rossetto; Pierino Zanella; Guido Salmaso; Valentino Rigato (literal)
Pagina inizio
  • 4609 (literal)
Pagina fine
  • 4614 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://ac.els-cdn.com/S0013468605004779/1-s2.0-S0013468605004779-main.pdf?_tid=cefb09252022c1a55ad07e44387e48a8&acdnat=1334837888_901865c94b7a9c9c43d84a7c5a5ba7b2 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 50 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Ca’ Foscari University of Venice, Department of Chemistry / Ca’ Foscari University of Venice, Department of Chemistry / CNR - –ICIS, Padova / CNR - –ICIS, Padova / CNR - –ICIS, Padova / CNR - –ICIS, Padova / CNR - –ICIS, Padova / INFN Laboratori Nazionali di Legnaro (literal)
Titolo
  • Electrochemical anticorrosion performance evaluation of Al2O3 coatings deposited by MOCVD on an industrial brass substrate (literal)
Abstract
  • Alumina (Al2O3) coatings of different thickness were deposited on OT59 brass substrate (BS) using the metal organic chemical vapour deposition (MOCVD) technique to evaluate the corrosion performance by EIS measurements. The used precursor was dimethyl-aluminiumisopropoxide. Electrochemical characterizations of the deposited films were performed in a standard very aggressive acidic solution (aerated 1N H2SO4 at 25 æC up to 168 h of immersion time) by means of direct current method (Tafel curves) and electrochemical impedance spectroscopy (EIS). The Rutherford backscattering spectroscopy (RBS) indicated that the films are very pure with the correct Al2O3 stoichiometry, while the IR absorption spectra showed that the films did not contain any O H groups. The surface film morphology was investigated by atomic force microscopy (AFM) and displayed a globular texture. The films were very smooth, with a maximum root mean square roughness, for example, of 14 nm for a 0.96 micron thick coating. The EIS data confirmed, as expected, that a 2.40 micron Al2O3 layer ensures the best corrosion protection after 168 h of immersion in the very acidic environment used. (literal)
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