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dc.contributor.authorCongreve, Jasmin V J
dc.contributor.authorShi, Yunhua
dc.contributor.authorHuang, Kai Yuan
dc.contributor.authorDennis, Anthony R
dc.contributor.authorDurrell, John H
dc.contributor.authorCardwell, David A
dc.date.accessioned2019-12-11T11:09:03Z
dc.date.available2019-12-11T11:09:03Z
dc.date.issued2019-12-11
dc.date.submitted2019-10-01
dc.identifier.issn0953-2048
dc.identifier.othersustab5b46
dc.identifier.otherab5b46
dc.identifier.othersust-103510.r1
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/299688
dc.description.abstractAbstract: The widespread use of melt processed, single grain (RE)–Ba–Cu–O bulk superconductors [(RE)BCO], where RE = Y, Gd or Sm, is limited predominantly by the poor mechanical properties of these inherently brittle, ceramic-like materials. The high density of flaws, such as cracks and voids, within the single grain microstructure leads directly to a low fracture toughness. As a result, the Lorentz forces, generated when these materials carry current in the presence of a large magnetic field, create stresses sufficiently large to cause brittle failure. The addition of Ba–Cu–O (liquid phase) and Ag to the precursor composition prior to melt-growth has been demonstrated to be effective in improving the mechanical properties of these technologically important materials. In this work, we characterise the mechanical failure of single grain YBCO bulk superconductors in terms of a Weibull statistical distribution. In addition, differences in fracture mechanisms have been studied to provide a better understanding of how the provision of additional liquid phase and silver produces YBCO single grains with better resulting mechanical properties and how these can be improved further.
dc.languageen
dc.rightsAttribution 3.0 Unported (CC BY 3.0)en
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/en
dc.subjectPaper
dc.subjectYBCO
dc.subjectYBCO-Ag
dc.subjectmechanical properties
dc.subjectfailure
dc.titleCharacterisation of the mechanical failure and fracture mechanisms of single grain Y–Ba–Cu–O bulk superconductors
dc.typeArticle
dc.date.updated2019-12-11T11:09:03Z
dc.identifier.doi10.17863/CAM.46758
dcterms.dateAccepted2019-11-25
rioxxterms.versionofrecord10.1088/1361-6668/ab5b46
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/3.0/
dc.contributor.orcidCongreve, Jasmin V J [0000-0002-2025-2155]
dc.contributor.orcidShi, Yunhua [0000-0003-4240-5543]
dc.contributor.orcidHuang, Kai Yuan [0000-0001-7476-305X]
dc.contributor.orcidDurrell, John H [0000-0003-0712-3102]
dc.identifier.eissn1361-6668
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/P00962X/1)


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Attribution 3.0 Unported (CC BY 3.0)
Except where otherwise noted, this item's licence is described as Attribution 3.0 Unported (CC BY 3.0)