Please use this identifier to cite or link to this item: https://doi.org/10.1088/0953-8984/21/24/245106
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dc.titleStructure of LixRb1-xPO3 glasses near the glass transition
dc.contributor.authorHall, A.
dc.contributor.authorSwenson, J.
dc.contributor.authorBowron, D.T.
dc.contributor.authorAdams, S.
dc.date.accessioned2014-10-07T09:54:14Z
dc.date.available2014-10-07T09:54:14Z
dc.date.issued2009
dc.identifier.citationHall, A., Swenson, J., Bowron, D.T., Adams, S. (2009). Structure of LixRb1-xPO3 glasses near the glass transition. Journal of Physics Condensed Matter 21 (24) : -. ScholarBank@NUS Repository. https://doi.org/10.1088/0953-8984/21/24/245106
dc.identifier.issn09538984
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/86738
dc.description.abstractThe temperature dependence of mixed alkali metaphosphate Li xRb1-xPO3 (x = 1, 0.5, 0) structures has been studied from room temperature up to about 20K above the glass transition temperature (Tg) by means of neutron diffraction and reverse Monte Carlo modelling. The results show that the structural changes are limited to a slight temperature-induced broadening of the peaks in S(Q) and a linear thermal expansion of 50-100ppmK-1. Furthermore, the possible diffusion pathways of the mobile ions have been investigated by the bond valence technique and the results show that they are not significantly affected as the glass is brought above Tg. The decrease in activation energy that occurs above Tg is thus attributed to an increased coupling between the motions of the mobile ions and the relaxation of the phosphate network. © 2009 IOP Publishing Ltd.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentMATERIALS SCIENCE AND ENGINEERING
dc.description.doi10.1088/0953-8984/21/24/245106
dc.description.sourcetitleJournal of Physics Condensed Matter
dc.description.volume21
dc.description.issue24
dc.description.page-
dc.description.codenJCOME
dc.identifier.isiut000266581500007
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