abstract
In this paper the inhibitive performance of cerium molybdate nanowires prepared by a novel methodology is reported. The methodology is based on a low-temperature, controlled-rate mixing process. Structurally, cerium molybdate nanowires were found to be amorphous-like materials whose inhibiting action towards aluminium alloy 2024-T3 was demonstrated by DC polarization and electrochemical impedance spectroscopy (EIS), corroborated by microstructural surface analysis of the metallic substrate. The observed inhibiting action is attributed to the higher solubility of the cerium molybdate nanomaterials with respect to crystalline sodium cerium molybdate obtained at room temperature. (C) 2012 Elsevier Ltd. All rights reserved.
keywords
AA2024-T3; INHIBITION; COATINGS; SPECTROSCOPY; PHOSPHATE; CHROMATE; PIGMENTS; COBALT
subject category
Materials Science; Metallurgy & Metallurgical Engineering
authors
Yasakau, KA; Tedim, J; Zheludkevich, ML; Drumm, R; Shem, M; Wittmar, M; Veith, M; Ferreira, MGS
our authors
João Tedim
Associate Professor
Kiryl Yasakau
Assistant Researcher
Mário Guerreiro Silva Ferreira
Retired Professor
Mikhail Zheludkevich
Invited Principal ResearcherProjects
acknowledgements
J.T. thanks FCT for Post-Doctoral grant (ref. SFRH/BPD/64335/2009). The authors acknowledge Aleksey Lisenkov for the SEM/EDS mapping analysis and Dr. Andrei N. Salak for XRD measurements. MULTIPROTECT (ref. NMP3-CT-2005-011783) and FCT (ref. PTDC/CTM/65632/2006) projects are acknowledged as well for financial support.