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Corrosion protection by multilayer coating using layer-by-layer technique

Gomes, E.C. ; Oliveira, M.A.S.

Surface & coatings technology, 2011-01, Vol.205 (8), p.2857-2864 [Periódico revisado por pares]

Amsterdam: Elsevier B.V

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Título:
Corrosion protection by multilayer coating using layer-by-layer technique
Autor: Gomes, E.C. ; Oliveira, M.A.S.
Assuntos: 2024 alloy ; Applied sciences ; Coating ; Corrosion ; Corrosion environments ; Corrosion prevention ; Cross-disciplinary physics: materials science; rheology ; EIS ; Electrochemical impedance spectroscopy ; Exact sciences and technology ; Layer-by-layer ; Materials science ; Metals. Metallurgy ; Multilayers ; Physics ; Polarization ; Polyaniline ; Protective coatings ; PVSS ; Surface treatments ; Thin films
É parte de: Surface & coatings technology, 2011-01, Vol.205 (8), p.2857-2864
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: In this work, polyaniline (PAni), a polycation, and poly (vinylsulfonic acid, sodium salt) (PVSS), a polyanion, were used for preparing multilayer thin films on AA2024 alloy surface using the layer-by-layer growth technique. The corrosion of AA2024 alloy surfaces coated with a number n (n = 0, 1, 5, 8, 10, 15) of multilayered thin films was investigated in 0.1 M NaCl aqueous solutions using potentiodynamic polarization, chronoamperometry and electrochemical impedance spectroscopy (EIS) techniques. These electrochemical tests were conducted at a temperature of (25 ± 2) °C. Surface coated with 08 (PVSS / PAni) bilayers presented greater resistance to corrosion in the chloride containing environment. ►Preparing multilayer thin films using the layer-by-layer growth technique ►PAni and PVSS were used to form multilayer films on AA2024 alloy surfaces ►Potentiodynamic polarization, chronoamperometric and EIS tests ►The best corrosion protection is provided by the 08 (PVSS / PAni) bilayer films
Editor: Amsterdam: Elsevier B.V
Idioma: Inglês

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Corrosion protection by multilayer coating using layer-by-layer technique

Gomes, E.C. ; Oliveira, M.A.S.

Amsterdam: Elsevier B.V

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