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dc.contributor.authorMARCHETTI MARAen_GB
dc.contributor.authorLAUX DIDIERen_GB
dc.contributor.authorFONGARO LORENZOen_GB
dc.contributor.authorWISS THIERRYen_GB
dc.contributor.authorVAN UFFELEN PAULen_GB
dc.contributor.authorDESPAUX GILLESen_GB
dc.contributor.authorRONDINELLA VINCENZOen_GB
dc.date.accessioned2018-02-07T01:18:57Z-
dc.date.available2018-02-05en_GB
dc.date.available2018-02-07T01:18:57Z-
dc.date.created2018-01-08en_GB
dc.date.issued2017en_GB
dc.date.submitted2017-03-09en_GB
dc.identifier.citationJOURNAL OF NUCLEAR MATERIALS vol. 494 p. 322-329en_GB
dc.identifier.issn0022-3115en_GB
dc.identifier.urihttp://publications.jrc.ec.europa.eu/repository/handle/JRC106099-
dc.description.abstractScanning acoustic microscopy is a non-destructive technique that allows determining the local material elastic properties by measuring the velocity of acoustic waves propagating in matter. High frequency acoustic waves are generated by a piezoelectric transducer, focused and then detected by the same transducer after having interacted with the sample. This technique has been employed in the past to assess different types of irradiated nuclear fuel and unirradiated chemical analogues of UO2 and it has enabled to relate the Rayleigh wave velocity of propagation with the Young's modulus and the density of the material. In the present study, thanks to new measurements on irradiated fuel and to analysis of data from the open literature, the variation of the density with burnup is determined up to ~ 100 GWd·t−1M. The porosity is then determined taking account of the irradiated fuel matrix swelling. Finally, an expression is proposed describing Young's modulus as a function of burnup, that can be used in fuel performance calculation.en_GB
dc.description.sponsorshipJRC.G.III.8-Waste Managementen_GB
dc.format.mediumPrinteden_GB
dc.languageENGen_GB
dc.publisherELSEVIER SCIENCE BVen_GB
dc.relation.ispartofseriesJRC106099en_GB
dc.titlePhysical and mechanical characterization of irradiated uranium dioxide with a broad burnup range and different dopants using acoustic microscopyen_GB
dc.typeArticles in periodicals and booksen_GB
dc.identifier.doi10.1016/j.jnucmat.2017.07.041en_GB
JRC Directorate:Nuclear Safety and Security

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