RT info:eu-repo/semantics/article
T1 Scanning Electrochemical Microscopy characterization of sol-gel coatings applied on AA2024-T3 substrate
A1 Souto, Ricardo Manuel
A1 Carbonell, Diógenes J.
A1 García-Casas, Amaya
A1 Izquierdo Pérez, Javier
A1 Galván, Juan Carlos
A1 Jiménez-Morales, Antonia
K1 Aluminium Alloy
K1 Interfaces
K1 Polymer coatings
K1 Scanning electrochemical microscopy
K1 EIS
AB Scanning electrochemical microscopy was employed to characterize the local surface activity of an AA2024-T3 coated with sol-gel. Corrosion inhibitors were added to the sol-gel either as soluble chemical species, namely 1,2,3-benzotriazole, Na-(diethyl(dithiocarbamate)), and piperazine, or using Ce(III)-montmorillonite containers. The Scanning electrochemical microscopy was operated in the feedback mode by using ferrocene-methanol as redox mediator. This experimental procedure allowed evaluation of the coating behaviour in damaged and non-damaged areas from the analysis of Z-approach curves and 2D maps. The results evidence differences in the local electrochemical activity of the modified coatings that correlate well with averaging electrochemical measurements using electrochemical impedance spectroscopy
YR 2016
FD 2016
LK http://riull.ull.es/xmlui/handle/915/19053
UL http://riull.ull.es/xmlui/handle/915/19053
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 02-jun-2024