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Investigation of NdxY0.25–xZr0.75O1.88 inert matrix fuel materials made by a co-precipitation synthetic route

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dc.contributor.authorHayes, John
dc.contributor.authorGrosvenor, Andrew
dc.date.accessioned2018-05-02T15:14:35Z
dc.date.available2018-05-02T15:14:35Z
dc.date.issued2016
dc.description.abstractYttria-stabilized zirconia (YSZ) is a material that is being considered for use as an inert matrix fuel in nuclear reactors, but a complete characterization of these materials is required for them to be licensed for use. A series of NdxY0.25–xZr0.75O1.88 materials have been synthesized using a co-precipitation method, and the thermal stability of these materials has been studied by annealing them at 1400 and 1500 °C. (Nd was used as surrogate for Am.) The long-range and local structures of the materials were characterized via powder X-ray diffraction, scanning electron microscopy, wavelength dispersive spectroscopy, and X-ray absorption spectroscopy at the Zr K- and Y K-edges. These results were compared with the previous characterization of Nd-YSZ materials synthesized using a ceramic method. The results indicated that the ordering in the local metal–oxygen polyhedral remains relatively unaffected by the synthetic method, but there was increased long-range disorder in the materials prepared by the co-precipitation method. Further, it was found that the materials produced by the co-precipitation method were unexpect- edly unstable when annealed at high temperature. This study highlights the importance of determining the effect of synthetic method on material properties and demonstrates how the co-precipitation route could be used to produce inert matrix fuels.en_US
dc.description.sponsorshipNSERCen_US
dc.identifier.citationCan. J. Chem. 94: 198–210 (2016)en_US
dc.identifier.urihttp://hdl.handle.net/10388/8552
dc.language.isoenen_US
dc.publisherNRC Research Pressen_US
dc.subjectXASen_US
dc.subjectceramicsen_US
dc.subjectstabilized zirconiaen_US
dc.subjectnuclear energyen_US
dc.subjectXRDen_US
dc.titleInvestigation of NdxY0.25–xZr0.75O1.88 inert matrix fuel materials made by a co-precipitation synthetic routeen_US
dc.typeArticleen_US

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