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dc.contributor.authorTYRPEKL VACLAVen_GB
dc.contributor.authorVIGIER JEAN-FRANCOISen_GB
dc.contributor.authorMANARA Darioen_GB
dc.contributor.authorWISS Thierryen_GB
dc.contributor.authorDIESTE BLANCO OLIVERen_GB
dc.contributor.authorSOMERS Josephen_GB
dc.date.accessioned2015-07-30T00:07:13Z-
dc.date.available2015-07-29en_GB
dc.date.available2015-07-30T00:07:13Z-
dc.date.created2014-11-25en_GB
dc.date.issued2015en_GB
dc.date.submitted2014-10-20en_GB
dc.identifier.citationJOURNAL OF NUCLEAR MATERIALS vol. 460 p. 200 - 208en_GB
dc.identifier.issn0022-3115en_GB
dc.identifier.urihttp://publications.jrc.ec.europa.eu/repository/handle/JRC92257-
dc.description.abstractOxalate precipitation is a powerful technique for actinide oxide preparation at either laboratory or industrial scales. In this study we focused on the low temperature decomposition of Th(C2O4)2•2H2O and (N2H5)2U2(C2O4)5•nH2O into nanograined ThO2 and UO2 powders, which will be used later as precursors for the generation of materials emulating the nuclear fuel high burnup structure (HBS). The evolution with temperature of the nanoparticles properties has been investigated using several solid state analytical techniques (transmission and scanning electron microscopy, room and high temperature powder X-ray diffraction, Raman spectroscopy, thermogravimetry). Oxide powders with a high degree of crystallinity and grain size from ~10 nm were prepared. Their purity was examined with special focus on the presence of carbonates. It was found that carbonate content in the final powder did not exceed 3.4 wt.%, for the powder treated at 600°C for 1 hour.en_GB
dc.description.sponsorshipJRC.E.4-Nuclear Fuel Safetyen_GB
dc.format.mediumOnlineen_GB
dc.languageENGen_GB
dc.publisherELSEVIER SCIENCE BVen_GB
dc.relation.ispartofseriesJRC92257en_GB
dc.titleLow temperature decomposition of U(IV) and Th(IV) oxalates to nanograined oxide powdersen_GB
dc.typeArticles in periodicals and booksen_GB
dc.identifier.doi10.1016/j.jnucmat.2015.02.027en_GB
JRC Directorate:Nuclear Safety and Security

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