Cation antisite disorder in uranium-doped gadolinium zirconate pyrochlores

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dc.contributor.authorGregg, DJen_AU
dc.contributor.authorZhang, ZMen_AU
dc.contributor.authorThorogood, GJen_AU
dc.contributor.authorKennedy, BJen_AU
dc.contributor.authorKimpton, JAen_AU
dc.contributor.authorGriffiths, GJen_AU
dc.contributor.authorGuagliardo, PRen_AU
dc.contributor.authorLumpkin, GRen_AU
dc.contributor.authorVance, ERen_AU
dc.date.accessioned2016-08-16T01:27:15Zen_AU
dc.date.available2016-08-16T01:27:15Zen_AU
dc.date.issued2014-09-01en_AU
dc.date.statistics2016-08-16en_AU
dc.description.abstractThe incorporation of uranium into gadolinium zirconate (Gd2Zr2O7) is investigated by synchrotron X-ray powder diffraction and X-ray absorption near-edge structure (XANES) spectroscopy. The results suggest that the uranium cation is largely located on the pyrochlore B-site instead of the targeted A-site. Cation disorder in Gd2Zr2O7 and U-doped Gd2Zr2O7 is investigated by positron annihilation lifetime spectroscopy (PALS) which demonstrates the absence of cation vacancies in these systems. This work provides direct evidence for cation antisite (A- and B-site mixing) disorder in U-doped and off-stoichiometric Gd2Zr2O7 pyrochlore. © 2014, Elsevier B.V.en_AU
dc.identifier.citationGregg, D. J., Zhang, Z., Thorogood, G. J., Kennedy, B. J., Kimpton, J. A., Griffiths, G. J., Guagliaro, P. R. Lumpkin, G. R., & Vance, E. R. (2014). Cation antisite disorder in uranium-doped gadolinium zirconate pyrochlores. Journal of Nuclear Materials, 452(1–3), 474-478. doi:10.1016/j.jnucmat.2014.05.021en_AU
dc.identifier.govdoc6963en_AU
dc.identifier.issn0022-3115en_AU
dc.identifier.issue1-3en_AU
dc.identifier.journaltitleJournal of Nuclear Materialsen_AU
dc.identifier.pagination474-478en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jnucmat.2014.05.021en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/7321en_AU
dc.identifier.volume452en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectUraniumen_AU
dc.subjectX-ray diffractionen_AU
dc.subjectCationsen_AU
dc.subjectPyrochloreen_AU
dc.subjectZirconatesen_AU
dc.subjectSpectroscopyen_AU
dc.titleCation antisite disorder in uranium-doped gadolinium zirconate pyrochloresen_AU
dc.typeJournal Articleen_AU
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