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dc.contributor.authorLowe, T
dc.contributor.authorBradley, RS
dc.contributor.authorYue, S
dc.contributor.authorBari, Klaudio
dc.contributor.authorGelb, J
dc.contributor.authorRohbeck, N
dc.contributor.authorTurner, J
dc.contributor.authorWithers, PJ
dc.date.accessioned2019-10-15T12:03:46Z
dc.date.available2019-10-15T12:03:46Z
dc.date.issued2015-02-28
dc.identifier.citationLowe, T., Bradley, R. S., .Yue, S., Bari, K., Gelb, J., Rohbeck, N., Turner, J. and Withers, P. J. (2015) Microstructural analysis of TRISO particles using multi-scale X-ray computed tomography, Journal of Nuclear Materials, 461, pp. 29-36.en
dc.identifier.issn0022-3115en
dc.identifier.doi10.1016/j.jnucmat.2015.02.034en
dc.identifier.urihttp://hdl.handle.net/2436/622850
dc.description© 2015 The Authors. Published by Elsevier. This is an open access article available under a Creative Commons licence. The published version can be accessed at the following link on the publisher’s website: https://doi.org/10.1016/j.jnucmat.2015.02.034
dc.description.abstractTRISO particles, a composite nuclear fuel built up by ceramic and graphitic layers, have outstanding high temperature resistance. TRISO fuel is the key technology for High Temperature Reactors (HTRs) and the Generation IV Very High Temperature Reactor (VHTR) variant. TRISO offers unparalleled containment of fission products and is extremely robust during accident conditions. An understanding of the thermal performance and mechanical properties of TRISO fuel requires a detailed knowledge of pore sizes, their distribution and interconnectivity. Here 50 nm, nano-, and 1 μm resolution, micro-computed tomography (CT), have been used to quantify non-destructively porosity of a surrogate TRISO particle at the 0.3–10 μm and 3–100 μm scales respectively. This indicates that pore distributions can reliably be measured down to a size approximately 3 times the pixel size which is consistent with the segmentation process. Direct comparison with Scanning Electron Microscopy (SEM) sections indicates that destructive sectioning can introduce significant levels of coarse damage, especially in the pyrolytic carbon layers. Further comparative work is required to identify means of minimizing such damage for SEM studies. Finally since it is non-destructive, multi-scale time-lapse X-ray CT opens the possibility of intermittently tracking the degradation of TRISO structure under thermal cycles or radiation conditions in order to validate models of degradation such as kernel movement. X-ray CT in-situ experimentation of TRISO particles under load and temperature could also be used to understand the internal changes that occur in the particles under accident conditions.en
dc.formatapplication/PDFen
dc.languageen
dc.language.isoenen
dc.publisherElsevieren
dc.titleMicrostructural analysis of TRISO particles using multi-scale X-ray computed tomographyen
dc.typeJournal articleen
dc.identifier.journalJournal of Nuclear Materialsen
dc.date.updated2019-09-27T15:14:06Z
dc.date.accepted2015-02-20
rioxxterms.funderEPSRC
rioxxterms.identifier.projectEP/F007906en
rioxxterms.identifier.projectEP/F028431en
rioxxterms.identifier.projectEP/I02249Xen
rioxxterms.versionVoRen
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by/4.0/en
rioxxterms.licenseref.startdate2019-10-15en
dc.source.volume461
dc.source.beginpage29
dc.source.endpage36
dc.description.versionPublished version
refterms.dateFCD2019-10-15T12:03:36Z
refterms.versionFCDVoR
refterms.dateFOA2019-10-15T12:03:46Z


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