Corrosion behaviour of cast and deformed copper-carbon nanotube composite wires in chloride media

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorHannula, Pyry Mikko
dc.contributor.authorMasquelier, Nicolas
dc.contributor.authorLassila, Sanni
dc.contributor.authorAromaa, Jari
dc.contributor.authorJanas, Dawid
dc.contributor.authorForsén, Olof
dc.contributor.authorLundström, Mari
dc.contributor.departmentDepartment of Chemical and Metallurgical Engineering
dc.contributor.departmentNexans Research Centre Lens
dc.contributor.departmentSilesian University of Technology
dc.date.accessioned2018-08-21T13:46:35Z
dc.date.available2018-08-21T13:46:35Z
dc.date.issued2018-05-25
dc.description| openaire: EC/H2020/609057/EU//ULTRAWIRE
dc.description.abstractCopper-carbon nanotube (Cu-CNT) composite wires were produced by casting, rolling and drawing to produce composites with 0.05 wt% CNTs embedded at the grain boundaries of copper. The corrosion properties of wires were investigated in mild and highly corrosive media: solution I consisting of 0.05 wt% sodium chloride (NaCl) and 0.4 wt% ammonium sulfate (NH4)2SO4 and solution II consisting of 3.5 wt% NaCl. Composite samples showed similar behaviour and corrosion rates as oxygen free copper in solution I. In 3.5 wt% NaCl all composite samples showed slight improvement in corrosion resistance when compared with oxygen free copper. The corroded wire surfaces after five days in 3.5 wt% NaCl showed less dissolution for composite samples compared with pure copper. The observed decreased corrosion rate for composite wires with embedded CNTs is suggested to be due to reduced cathodic reaction. Galvanic current density between pure copper and carbon nanotubes was observed by mixed potential theory and zero resistance amperometry, neither of which showed tendency towards microgalvanic activity. The results indicate similar or slightly improved corrosion properties of copper containing small additions of CNTs in chloride containing media.en
dc.description.versionPeer revieweden
dc.format.extent9
dc.format.extent218-226
dc.identifier.citationHannula , P M , Masquelier , N , Lassila , S , Aromaa , J , Janas , D , Forsén , O & Lundström , M 2018 , ' Corrosion behaviour of cast and deformed copper-carbon nanotube composite wires in chloride media ' , Journal of Alloys and Compounds , vol. 746 , pp. 218-226 . https://doi.org/10.1016/j.jallcom.2018.02.289en
dc.identifier.doi10.1016/j.jallcom.2018.02.289
dc.identifier.issn0925-8388
dc.identifier.otherPURE UUID: 9cd6a540-1eab-4e25-ba2e-271a105d6342
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/9cd6a540-1eab-4e25-ba2e-271a105d6342
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85042654126&partnerID=8YFLogxK
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/33537
dc.identifier.urnURN:NBN:fi:aalto-201808214670
dc.language.isoenen
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/609057/EU//ULTRAWIRE
dc.relation.ispartofseriesJournal of Alloys and Compoundsen
dc.relation.ispartofseriesVolume 746en
dc.rightsrestrictedAccessen
dc.subject.keywordCarbon nanotube
dc.subject.keywordComposite
dc.subject.keywordCopper
dc.subject.keywordCorrosion
dc.subject.keywordSeawater
dc.subject.keywordWire
dc.titleCorrosion behaviour of cast and deformed copper-carbon nanotube composite wires in chloride mediaen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
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