Ce nanoparticles and sol-gel hybrid organic-inorganic coatings maximize corrosion protection in the anodized AA2024-T3

Oscar Mauricio Prada Ramirez, Thomas Kremmer, J. H. Marin, B. P. da Silva, Maksim Starykevich, Matheus Tunes, Mário G.S. Ferreira, I. V. Aoki, R. A. Ando, Stefan Pogatscher, Hercílio Gomes de Melo

Research output: Contribution to journalArticleResearchpeer-review


We demonstrate that the corrosion resistance of the AA2024-T3 alloy can be maximized with the application of top protective sol-gel hybrid organic-inorganic coatings. Samples combining Ce nanoparticles within the pores of the anodic layer with the top sol-gel coatings were observed to outperform samples featuring only the coating. This research unravels the self-healing capability against corrosion of the sol-gel coating when Ce nanoparticles are present, as well as a good coverage of defective regions within the oxide by the hybrid layer. This research opens a paradigm aiming at maximizing the corrosion resistance for non-ferrous anodized alloys.
Original languageEnglish
Article number111330
Number of pages21
JournalCorrosion science
Issue number15 August
Early online date14 Jun 2023
Publication statusPublished - 15 Aug 2023

Bibliographical note

Publisher Copyright: © 2023 Elsevier Ltd


  • Anodization
  • Ce post-treatment
  • Local electrochemical impedance spectroscopy
  • Scanning Transmission Electron Microscopy
  • Self-healing
  • Sol-gel hybrid coating

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