The incorporation of neptunium and plutonium in thorutite (ThTi2O6)

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dc.contributor.authorZhang, YJen_AU
dc.contributor.authorGregg, DJen_AU
dc.contributor.authorLumpkin, GRen_AU
dc.contributor.authorBegg, BDen_AU
dc.contributor.authorJovanovic, Men_AU
dc.date.accessioned2015-11-01T03:05:21Zen_AU
dc.date.available2015-11-01T03:05:21Zen_AU
dc.date.issued2013-12-25en_AU
dc.date.statistics2015-10-28en_AU
dc.description.abstractThe incorporation of neptunium (Np) and plutonium (Pu) into the brannerite structured lattice was studied using thorutite (ThTi2O6) as host lattice and sintering in air. The uncompensated Np and Pu doped samples and the low Y-charge compensated Np and Pu doped samples showed main phases as designed together with trace amounts of rutile. Those samples with larger amounts of Y produced yttrium pyrochlores as an additional minor phase. XRD analyses reveal anisotropic changes of the cell parameters; the a-parameter contracts while b- and c-parameters expand with mean cationic radius. This is in reasonable agreement with previous experimental data on ThTi2O6 and Ce0.975Ti2O5.95. Attempts to form Np or Pu valences >4+ by adding Y as a charge compensator were unsuccessful, suggesting that tetravalent Np and Pu ions are favoured in air-fired thorutite. © 2013, Elsevier B.V.en_AU
dc.identifier.citationZhang, Y., Gregg, D. J., Lumpkin, G. R., Begg, B. D., & Jovanovic, M. (2013). The incorporation of neptunium and plutonium in thorutite (ThTi2O6). Journal of Alloys and Compounds, 581, 665-670. doi:10.1016/j.jallcom.2013.07.115en_AU
dc.identifier.govdoc6236en_AU
dc.identifier.issn0925-8388en_AU
dc.identifier.journaltitleJournal of Alloys and Compoundsen_AU
dc.identifier.pagination665-670en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jallcom.2013.07.115en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6386en_AU
dc.identifier.volume581en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectNeptuniumen_AU
dc.subjectPlutoniumen_AU
dc.subjectExperimental dataen_AU
dc.subjectRutileen_AU
dc.subjectAlkoxidesen_AU
dc.subjectOxygenen_AU
dc.titleThe incorporation of neptunium and plutonium in thorutite (ThTi2O6)en_AU
dc.typeJournal Articleen_AU
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