Crystal chemistry and ion-irradiation resistance of Ln2ZrO5 compounds with Ln = Sm, Eu, Gd, and Tb

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dc.contributor.authorAughterson, RDen_AU
dc.contributor.authorLumpkin, GRen_AU
dc.contributor.authorZhang, ZMen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorKong, Len_AU
dc.date.accessioned2022-11-02T22:36:54Zen_AU
dc.date.available2022-11-02T22:36:54Zen_AU
dc.date.issued2021-12-22en_AU
dc.date.statistics2022-10-07en_AU
dc.description.abstractThe previously unattained fabrication of single phase Ln2ZrO5 (Ln = Sm, Eu, Gd, and Tb) compounds via relatively low sintering temperature (1400°C) is achieved in this study using a coprecipitation method. The crystal structures have been investigated by neutron, synchrotron X-ray powder diffraction, and electron diffraction techniques. While the general long-range structure may be well described by the defect-fluorite type structure with Fm3m symmetry, electron diffraction has highlighted a complex underlying modulated structure that varies between each compound. These compounds have been tested for ion-irradiation response using in situ 1 MeV krypton ions and transmission electron microscopy characterization. None of the compounds undergo a crystalline to amorphous transition, even holding at 50 K. Both the underlying fluorite and modulated superstructures are little affected by the irradiation. However, some atomic rearrangements are observed in the postirradiated electron diffraction patterns for the Sm2ZrO5 specimen. © 2021 Commonwealth of Australia.en_AU
dc.description.sponsorshipOffice of Nuclear Energy under DOE Idaho Operations Office Contract DE-AC07- 051D14517en_AU
dc.identifier.citationAughterson, R. D., Lumpkin, G. R., Zhang, Z., Avdeev, M., & Kong, L. (2022). Crystal chemistry and ion‐irradiation resistance of Ln2ZrO5 compounds with Ln= Sm, Eu, Gd, and Tb. Journal of the American Ceramic Society, 105(5), 3521-3533. doi:10.1111/jace.18294en_AU
dc.identifier.issn1551-2916en_AU
dc.identifier.issue5en_AU
dc.identifier.journaltitleJournal of the American Ceramic Societyen_AU
dc.identifier.pagination3521-3533en_AU
dc.identifier.urihttps://doi.org/10.1111/jace.18294en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13957en_AU
dc.identifier.volume105en_AU
dc.language.isoenen_AU
dc.publisherJohn Wiley & Sons, Incen_AU
dc.subjectCrystalsen_AU
dc.subjectChemistryen_AU
dc.subjectIonsen_AU
dc.subjectIrradiationen_AU
dc.subjectRare earthsen_AU
dc.subjectZirconatesen_AU
dc.subjectSynthesisen_AU
dc.subjectMicrostructureen_AU
dc.titleCrystal chemistry and ion-irradiation resistance of Ln2ZrO5 compounds with Ln = Sm, Eu, Gd, and Tben_AU
dc.typeJournal Articleen_AU
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