Show simple item record

dc.contributor.authorSobral, JMen
dc.contributor.authorClyne, Billen
dc.contributor.authorRezk, Rashaen
dc.contributor.authorMarkaki, Athinaen
dc.date.accessioned2017-10-02T14:32:53Z
dc.date.available2017-10-02T14:32:53Z
dc.date.issued2017-10-15en
dc.identifier.issn0257-8972
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/267499
dc.description.abstractThis paper presents information about the formation of terraces (often composed of relatively wide faces and relatively narrow steps between them) on samples of polycrystalline palladium. These have been formed via simple heat treatments, involving holding at 1200˚C for periods ranging from a few minutes to several hours, followed by quenching by jets of inert gas. These treatments are such that the terraces are created, and survive the cooling, without significant formation of surface oxide. The crystallographic anisotropy of the surface energy is the driving force for terrace formation, with low surface energy planes tending to be preferentially exposed. Information is presented regarding the surface topography of the terraces and of the grain boundary regions, which have mainly been explored using AFM. Typically, the step heights are of the order of 50 nm and the widths of the faces between them are around 1 µm, although there are quite substantial local variations in these figures. It is shown that a degree of control is possible via the grain structure and texture of the sample, as well as via the processing conditions during the terracing treatment.
dc.description.sponsorshipThis research was supported by the EPSRC (EP/E025862/1) and the European Research Council (Grant No. 240446). Financial support for RR was provided by the Nabaa El Mahabaa, Egypt (ID 5898).
dc.publisherElsevier
dc.rightsAttribution 4.0 International*
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectTerracesen
dc.subjectPalladiumen
dc.subjectSurface oxideen
dc.subjectSurface energy anisotropyen
dc.subjectAFMen
dc.titleControl over fine scale terrace structures induced on polycrystalline Pd by simple heat treatments in airen
dc.typeArticle
prism.endingPage335
prism.issueIdentifierPart Aen
prism.publicationDate2017en
prism.publicationNameSurface and Coatings Technologyen
prism.startingPage327
prism.volume326en
dc.identifier.doi10.17863/CAM.12211
dcterms.dateAccepted2017-07-31en
rioxxterms.versionofrecord10.1016/j.surfcoat.2017.07.071en
rioxxterms.versionVoR*
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/en
rioxxterms.licenseref.startdate2017-10-15en
dc.contributor.orcidClyne, Bill [0000-0003-2163-1840]
dc.contributor.orcidMarkaki, Athina [0000-0002-2265-1256]
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/C011112/1)
pubs.funder-project-idEuropean Research Council (240446)
pubs.funder-project-idEuropean Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (707684)
cam.issuedOnline2017-08-01en


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record

Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International