Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Anticorrosive cerium-based coatings prepared by the sol-gel method

Full text
Author(s):
Salazar-Banda, Giancarlo R. [1, 2] ; Moraes, Sandra R. [2] ; Motheo, Artur J. [2] ; Machado, Sergio A. S. [2]
Total Authors: 4
Affiliation:
[1] Univ Tiradentes, ITP, Programa Posgrad Engn Proc, Aracaju, SE - Brazil
[2] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Paulo - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Sol-Gel Science and Technology; v. 52, n. 3, p. 415-423, DEC 2009.
Web of Science Citations: 28
Abstract

The development of efficient anti-corrosion and environmentally friendly coating systems are needed for the replacement of the highly toxic Cr-based conversion coatings for corrosion protection of aluminum alloys. In this study, we demonstrate that the direct application of ceramic cerium-based sol-gel coatings to AA7075-T6 substrates produces high-performance anti-corrosion layers. Electrochemical experiments and analyses of the microstructure demonstrate that the protective layers are very efficient for the passivation of the alloy surfaces operating as both passive and active barrier for corrosion protection. (AU)

FAPESP's process: 05/04641-4 - Combination of cerium and polyaniline conversion layers on aluminum alloys as a corrosion-resistant coating
Grantee:Sandra Regina de Moraes
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 04/12189-1 - Corrosion protection methods for aluminum alloys
Grantee:Artur de Jesus Motheo
Support Opportunities: Research Projects - Thematic Grants