Zirconia primers for corrosion resistant coatings (Articolo in rivista)

Type
Label
  • Zirconia primers for corrosion resistant coatings (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.surfcoat.2006.10.036 (literal)
Alternative label
  • G. Gusmano, G. Montesperelli, G. Padeletti, M. Rapone, S. Kaciulis, A. Mezzi, A. Cusmà (2007)
    Zirconia primers for corrosion resistant coatings
    in Surface & coatings technology; Elsevier Sequoia, Lausanne (Svizzera)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • G. Gusmano, G. Montesperelli, G. Padeletti, M. Rapone, S. Kaciulis, A. Mezzi, A. Cusmà (literal)
Pagina inizio
  • 5822 (literal)
Pagina fine
  • 5828 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 201 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Politecn Marche, Dipartimento Fis & Infn Mat & Terr, Ancona, Italy Univ Roma Tor Vergata, Consorzio INSTM, I-00173 Rome, Italy Univ Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00173 Rome, Italy CNR, ISMN, Monterondo Stn, Rome, Italy Univ Trent, Dipartimento Ingn Mat, I-38100 Trento, Italy (literal)
Titolo
  • Zirconia primers for corrosion resistant coatings (literal)
Abstract
  • The recent restriction in the use of chromium VI gave a new impulse in the field of anti-corrosion treatment for an alternative solution. A promising route seems to be the deposition of a thin ceramic layer on the metallic surface. In this study, four zirconia primers have been deposited on 1050 aluminium sheets by sol-gel process. Sol preparation was obtained starting from two different precursors and two curing temperatures were tested. Surface microstructure and chemical composition were determined by AFM and XPS for all samples. Electrochemical Noise Analysis (ENA) was used in Harrison's solution to evaluate the corrosion resistant features of the samples. Tests have been also performed on samples protected by polyester topcoat deposited on the aforesaid primers. AFM analysis revealed that, for all the samples, covering and structure of the coating were uniform. XPS depth profiling allowed concluding that film thickness was in the range from 18 to 30 nm and that chemical composition was constant through primer thickness. Corrosion tests demonstrated that zirconia primers showed good performances in terms of corrosion resistance, comparable to chromate and fluotitanate layers industrially prepared. (literal)
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