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dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.contributor.author	Dalmoro, V.
dc.contributor.author	dos Santos, João Henrique Zimnoch
dc.contributor.author	Armelín Diggroc, Elaine Aparecida
dc.contributor.author	Alemán Llansó, Carlos
dc.contributor.author	Azambuja, Denise S.
dc.date	2012-10-05T10:17:13Z
dc.date	2012-07
dc.date	2012-07
dc.date	10000-01-01
dc.date.accessioned	2012-10-05T22:13:38Z
dc.date.available	2012-10-05T22:13:38Z
dc.date.issued	2012-10-05T22:13:38Z
dc.identifier.citation	Dalmoro, V. [et al.]. Phosphonic acid/silica-based films: A potential treatment for corrosion protection. "Corrosion science", Juliol 2012, vol. 60, p. 173-180.
dc.identifier.citation	0010-938X
dc.identifier.citation	10.1016/j.corsci.2012.03.040
dc.identifier.uri	http://hdl.handle.net/2117/16653
dc.format	8 p.
dc.language.iso	eng
dc.relation	http://www.sciencedirect.com/science/article/pii/S0010938X12001588
dc.rights	Restricted access - publisher's policy
dc.subject	Àrees temàtiques de la UPC::Enginyeria química
dc.subject	Infrared spectroscopy
dc.subject	Aluminum alloys
dc.subject	A. Aluminium alloys
dc.subject	B. Electrochemical impedance spectroscopy
dc.subject	B. Infrared spectroscopy
dc.subject	Alumini -- Aliatges
dc.subject	Espectroscòpia infraroja pròxima
dc.title	Phosphonic acid/silica-based films: A potential treatment for corrosion protection
dc.type	info:eu-repo/semantics/article
dc.description.abstract	Films of tetraethyl orthosilicate (TEOS) and 1,2-diaminoethanetetrakis methylenephosphonic acid (EDTPO) were evaluated as a anticorrosive treatment against corrosion for AA2024-T3 in a 0.05 mol L−1 NaCl solution. The electrochemical behavior was investigated using electrochemical impedance spectroscopy. The chemical composition of the silanization bath and films were analyzed by infrared spectroscopy. The effect of hydrolysis time on sol–gel TEOS/EDTPO was monitored, being obtained the best performance after 72 h of hydrolysis at 25 °C. The optimal concentration of EDTPO within the TEOS matrix was 3.75 × 10−4 mol L−1. Improved barrier properties of these films were achieved by the addition of silica nanoparticles.

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