Show simple item record

dc.contributor.authorPudasaini, Uttaren
dc.contributor.authorEremeev, Grigory, Ven
dc.contributor.authorReece, Charles E.en
dc.contributor.authorTuggle, Jamesen
dc.contributor.authorKelley, Michael J.en
dc.date.accessioned2019-08-13T18:31:29Z
dc.date.available2019-08-13T18:31:29Z
dc.date.issued2019-04en
dc.identifier.issn0953-2048en
dc.identifier.other45008en
dc.identifier.urihttp://hdl.handle.net/10919/93050
dc.description.abstractNb3Sn offers significant potential to exceed the performance of niobium for superconducting radio frequency accelerator cavities. The most promising path toward deployment is by tin vapor diffusion coating of Nb cavity interiors via a two step nucleation-then-growth sequence. Reported here is a materials science study of the nucleation process. We manipulated the accessible range of process variables and determined the effect on composition and microstructure using an array of materials characterization tools. Broadly, nucleation deposits tin as a thin surface phase and, under some conditions, as near-micron sized particles as well, resembling Stranski-Krastanov growth. Conditions that impair nucleation promote the formation of defects, such as patches, in subsequent coating growth. Otherwise no significant effect on the subsequently grown coating was found for structures produced during nucleation.en
dc.language.isoenen
dc.rightsCC0 1.0 Universalen
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/en
dc.subjectNb3Snen
dc.subjectnucleationen
dc.subjectSRF cavityen
dc.subjectvapor diffusion coatingen
dc.subjectStranski-Krastanov growthen
dc.titleInitial growth of tin on niobium for vapor diffusion coating of Nb3Snen
dc.typeArticle - Refereeden
dc.description.notesPublic domain – authored by a U.S. government employeeen
dc.title.serialSuperconductor Science & Technologyen
dc.identifier.doihttps://doi.org/10.1088/1361-6668/aafa88en
dc.identifier.volume32en
dc.identifier.issue4en
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen
dc.identifier.eissn1361-6668en


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

CC0 1.0 Universal
License: CC0 1.0 Universal