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dc.contributor.authorAgustín-Sáenz, Cecilia
dc.contributor.authorSanta Coloma, Patricia
dc.contributor.authorFernández-Carretero, Francisco J.
dc.contributor.authorBrusciotti, Fabiola
dc.contributor.authorBrizuela, Marta
dc.date.accessioned2020-06-09T15:36:31Z
dc.date.available2020-06-09T15:36:31Z
dc.date.issued2020-04-30
dc.identifier.citationJournal Article published 30 Apr 2020 in Coatings volume 10 issue 5 on page 441en
dc.identifier.urihttp://hdl.handle.net/11556/933
dc.description.abstractAn inorganic–organic coating based on glycidyl-functionalized silica and zirconia was synthesized by sol-gel technology to protect three types of AlMgSi (6XXX series) alloys against corrosion in aerospace applications. Different parameters such as the solid content, the organic/inorganic ratio of the sols and the deposition conditions were studied with the aim to achieve a tradeoff between the corrosion protection, antistatic performance and low vacuum-induced outgassing. Those parameters directly influence the thickness and the density of the coatings, and therefore the barrier effect against corrosion and the contact electrical resistance, which are affected in opposite ways. To obtain a low contact electrical resistance, silver nanowires (NW) with a high aspect ratio were loaded in the sol-gel matrix with the aim to create a conductive path through the hybrid coating with a low concentration of NWs. The coatings were adapted for AA6063, AA6061 and AA6082, and they all showed an outstanding anti-corrosion performance in different artificial weathering tests, whereas electrochemical impedance spectroscopy permitted the identification of the most critical parameters affecting water uptake. An antistatic performance was demonstrated by the low contact electrical resistance of the coated AA6061 and AA6063 alloys, although the incorporation of NWs showed a detrimental effect on the corrosion protection compared with the unloaded coatingen
dc.description.sponsorshipThis work has received funding from the European Union’s Horizon 2020 Research and Innovation Programme within the project PEGASUS under Grant Agreement no. 640143; from the European Space Agency within ESA ITI Programme under contract number 4000124218 (IRUCOAT4SPACE project) and from the Basque Government through FRONTIERS IV project (ELKARTEK 2018, KK-2018/00108).en
dc.language.isoengen
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleDesign of Corrosion Protective and Antistatic Hybrid Sol-Gel Coatings on 6XXX AlMgSi Alloys for Aerospace Applicationen
dc.typearticleen
dc.identifier.doi10.3390/coatings10050441en
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/640143/EU/Flight Qualification of Deployable Radiator using Two Phase Technology /PEGASUSen
dc.rights.accessRightsopenAccessen
dc.subject.keywordsCorrosion protectionen
dc.subject.keywordsHybrid sol-gel coatingen
dc.subject.keywordsAerospaceen
dc.subject.keywordsOutgassingen
dc.subject.keywordsAlMgSien
dc.subject.keywords6XXXen
dc.identifier.essn2079-6412en
dc.issue.number5en
dc.journal.titleCoatingsen
dc.page.initial441en
dc.volume.number10en


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