Artículo
Electrodeposition of polypyrrole onto NiTi and the corrosion behaviour of the coated alloy
Fecha de publicación:
01/2010
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Corrosion Science
ISSN:
0010-938X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Polypyrrole (PPy) films were electrodeposited onto nickel--titanium alloy (NiTi) employing sodium bis(2-ethylhexyl) sulfosuccinate (Aerosol OT or AOT) solutions. Polarizing anodically NiTi samples recovered by PPy in a monomer-free solution increases adhesion of the coating. Electrochemical techniques, scanning electron microscopy (SEM) and element analysis were used in determining the corrosion performance of the coated samples in chloride solution. The polymer improves the corrosion performance at the open circuit potential and at potentials where the bare substrate suffers pitting attack. The improvement in both, adhesion and corrosion performance, is discussed considering substrate/polymer interaction, overoxidation of PPy and the role played by AOT. © 2009 Elsevier Ltd. All rights reserved.
Palabras clave:
A. Aot
,
A. Nickel--Titanium Alloy
,
A. Polypyrrole
,
C. Electropolymerization
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Identificadores
Colecciones
Articulos(CCT - BAHIA BLANCA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Citación
Flamini, Daniel Omar; Saidman, Silvana Beatriz; Electrodeposition of polypyrrole onto NiTi and the corrosion behaviour of the coated alloy; Pergamon-Elsevier Science Ltd; Corrosion Science; 52; 1; 1-2010; 229-234
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