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

doi:10.1016/j.corsci.2023.111330

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

Chair of Nonferrous Metallurgy (520)

Research output: Contribution to journal › Article › Research › peer-review

Abstract

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 language	English
Article number	111330
Number of pages	21
Journal	Corrosion science
Volume	221.2023
Issue number	15 August
Early online date	14 Jun 2023
DOIs	https://doi.org/10.1016/j.corsci.2023.111330
Publication status	Published - 15 Aug 2023

Bibliographical note

Keywords

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

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10.1016/j.corsci.2023.111330

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Prada Ramirez, O. M., Kremmer, T., Marin, J. H., da Silva, B. P., Starykevich, M., Tunes, M., Ferreira, M. G. S., Aoki, I. V., Ando, R. A., Pogatscher, S., & de Melo, H. G. (2023). Ce nanoparticles and sol-gel hybrid organic-inorganic coatings maximize corrosion protection in the anodized AA2024-T3. Corrosion science, 221.2023(15 August), Article 111330. https://doi.org/10.1016/j.corsci.2023.111330

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

abstract = "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.",

keywords = "Anodization, Ce post-treatment, Local electrochemical impedance spectroscopy, Scanning Transmission Electron Microscopy, Self-healing, Sol-gel hybrid coating",

author = "\{Prada Ramirez\}, \{Oscar Mauricio\} and Thomas Kremmer and Marin, \{J. H.\} and \{da Silva\}, \{B. P.\} and Maksim Starykevich and Matheus Tunes and Ferreira, \{M{\'a}rio G.S.\} and Aoki, \{I. V.\} and Ando, \{R. A.\} and Stefan Pogatscher and \{de Melo\}, \{Herc{\'i}lio Gomes\}",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd",

year = "2023",

month = aug,

day = "15",

doi = "10.1016/j.corsci.2023.111330",

language = "English",

volume = "221.2023",

journal = "Corrosion science",

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Prada Ramirez, OM, Kremmer, T, Marin, JH, da Silva, BP, Starykevich, M, Tunes, M, Ferreira, MGS, Aoki, IV, Ando, RA, Pogatscher, S & de Melo, HG 2023, 'Ce nanoparticles and sol-gel hybrid organic-inorganic coatings maximize corrosion protection in the anodized AA2024-T3', Corrosion science, vol. 221.2023, no. 15 August, 111330. https://doi.org/10.1016/j.corsci.2023.111330

TY - JOUR

T1 - Ce nanoparticles and sol-gel hybrid organic-inorganic coatings maximize corrosion protection in the anodized AA2024-T3

AU - Prada Ramirez, Oscar Mauricio

AU - Kremmer, Thomas

AU - Marin, J. H.

AU - da Silva, B. P.

AU - Starykevich, Maksim

AU - Tunes, Matheus

AU - Ferreira, Mário G.S.

AU - Aoki, I. V.

AU - Ando, R. A.

AU - Pogatscher, Stefan

AU - de Melo, Hercílio Gomes

PY - 2023/8/15

Y1 - 2023/8/15

N2 - 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.

AB - 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.

KW - Anodization

KW - Ce post-treatment

KW - Local electrochemical impedance spectroscopy

KW - Scanning Transmission Electron Microscopy

KW - Self-healing

KW - Sol-gel hybrid coating

UR - https://www.scopus.com/pages/publications/85162908659

U2 - 10.1016/j.corsci.2023.111330

DO - 10.1016/j.corsci.2023.111330

M3 - Article

AN - SCOPUS:85162908659

SN - 0010-938X

VL - 221.2023

JO - Corrosion science

JF - Corrosion science

IS - 15 August

M1 - 111330

ER -

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

Abstract

Bibliographical note

Keywords

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