ISIS Neutron and Muon Source Data Journal

Investigation into the structural relations of actinide brannerites

Abstract: Actinide brannerites (prototypically UTi2O6) have been proposed as ceramic wasteforms for disposal of high actinide content radioactive wastes arising from civilian nuclear power generation. The crystal structures of the end-member brannerites UTi2O6, ThTi2O6, and CeTi2O6 have been previously determined, but little information is available on doped or otherwise unusual structures within the brannerite system. In particular, one of the polymorphs of ThTi2O6 has an unusual structure, the presence of which, or conversion to/from the brannerite structure, may have a deleterious effect on the performance of the final wasteform. Similarly, though there are many previous reports of doped uranium brannerites (U,M)Ti2O6, research on the effect of Ti-site doping U(Ti,M)2O6 is scarce, despite observations that the crystal chemistry of the brannerite structure is more complex than expected.

Principal Investigator: Dr Neil Hyatt
Local Contact: Dr Dominic Fortes
Experimenter: Mr Malin Dixon Wilkins
Experimenter: Dr Martin Stennett

DOI: 10.5286/ISIS.E.RB2000257

ISIS Experiment Number: RB2000257

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Neil Hyatt et al; (2021): Investigation into the structural relations of actinide brannerites, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2000257

Data is released under the CC-BY-4.0 license.