In the present work we analyzed the anti-corrosive properties, on samples of AA6061 alloy, of sol-gel silane-zeolite hybrid coatings doped with cerium nitrate ions as inhibitor. Three different types of composite coatings were prepared by using cerium doped zeolite and/or silane matrix. For each type four formulations were made employing concentrations equal to 60, 70, 80 and 90% by weight of zeolite producing a total amount of 13 batch. All composite coating evidenced a high homogeneity and good adhesion performances. Cerium addiction in the coating formulation slight reduced the hydrophobic properties of the coating. Furthermore the addition of the cerium ions improved the anti-corrosion properties of the composite films inducing a significant stability of the electrochemical behavior.
Corrosion resistance of cerium based Silane-Zeolite coatings on AA6061 alloy
CAPRI', ANGELA;CALABRESE, Luigi;PROVERBIO, Edoardo
2015-01-01
Abstract
In the present work we analyzed the anti-corrosive properties, on samples of AA6061 alloy, of sol-gel silane-zeolite hybrid coatings doped with cerium nitrate ions as inhibitor. Three different types of composite coatings were prepared by using cerium doped zeolite and/or silane matrix. For each type four formulations were made employing concentrations equal to 60, 70, 80 and 90% by weight of zeolite producing a total amount of 13 batch. All composite coating evidenced a high homogeneity and good adhesion performances. Cerium addiction in the coating formulation slight reduced the hydrophobic properties of the coating. Furthermore the addition of the cerium ions improved the anti-corrosion properties of the composite films inducing a significant stability of the electrochemical behavior.Pubblicazioni consigliate
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