Intrinsically localized vibrations and the mechanical properties of α-uranium.

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dc.contributor.authorManley, MEen_AU
dc.contributor.authorYethiraj, Men_AU
dc.contributor.authorSinn, Hen_AU
dc.contributor.authorVolz, HMen_AU
dc.contributor.authorAlatas, Aen_AU
dc.contributor.authorLashley, JCen_AU
dc.contributor.authorHults, WLen_AU
dc.contributor.authorLander, GHen_AU
dc.contributor.authorThoma, DJen_AU
dc.contributor.authorSmith, JLen_AU
dc.date.accessioned2008-04-23T06:08:45Zen_AU
dc.date.accessioned2010-04-30T05:02:56Zen_AU
dc.date.available2008-04-23T06:08:45Zen_AU
dc.date.available2010-04-30T05:02:56Zen_AU
dc.date.issued2007-10-11en_AU
dc.date.statistics2007-10en_AU
dc.description.abstractRecent experiments have indicated that the high-temperature properties of α-uranium may be strongly influenced by the formation of randomly distributed intrinsically localized vibrational modes, just a few atoms across in size. One observation was a loss of mechanical ductility that coincided with the formation of the intrinsically localized mode (ILM). Here, we consider this observation in more detail. In particular, we use the anisotropic thermal expansion behaviour to estimate the strains associated with each ILM and consider the implications for the forces between ILMs and the defects responsible for mechanical deformation. In the process we also suggest that an unusual transition from positive to negative thermal expansion along the [0 1 0] direction may be caused by the formation of ILMs. © 2007, Elsevier Ltd.en_AU
dc.identifier.citationManley, M. E., Yethiraj, M., Sinn, H., Volz, H. M., Alatas, A., Lashley, J. C., Hults, W. L., Lander, G. H., Thoma, D. J., & Smith, J. L. (2007). Intrinsically localized vibrations and the mechanical properties of α-uranium. Journal of Alloys and Compounds, 444, 129-132. doi:10.1016/j.jallcom.2006.09.137en_AU
dc.identifier.govdoc1187en_AU
dc.identifier.issn0925-8388en_AU
dc.identifier.journaltitleJournal of Alloys and Compoundsen_AU
dc.identifier.pagination129-132en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jallcom.2006.09.137en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1117en_AU
dc.identifier.volume444en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectThermal expansionen_AU
dc.subjectPlutoniumen_AU
dc.subjectUraniumen_AU
dc.subjectMechanical vibrationsen_AU
dc.subjectDuctilityen_AU
dc.subjectStrainsen_AU
dc.titleIntrinsically localized vibrations and the mechanical properties of α-uranium.en_AU
dc.typeJournal Articleen_AU
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