Structure and dynamics of Oxide Melts and Glasses : a view from multinuclear and high temperature NMR

Details Structure and dynamics of Oxide Melts and Glasses : a view from multinuclear and high temperature NMR Structure and dynamics of Oxide Melts and Glasses : a view from multinuclear and high temperature NMR

2007-10-04

arxiv.org/abs/0710.1003v1

Physics

Condensed Matter

Materials Science

Journal of Non-Crystalline Solids (2007) in press; Also available online at: http://crmht.cnrs-orleans.fr/Intranet/Publication

Scientific paper

10.1016/j.jnoncrysol.2007.06.097

Solid State Nuclear Magnetic Resonance (NMR) experiments allow characterizing the local structure and dynamics of oxide glasses and melts. Thanks to the development of new experiments, it now becomes possible to evidence not only the details of the coordination state of the network formers of glasses but also to characterize the nature of polyatomic molecular motifs extending over several chemical bonds. We present results involving 31P homonuclear experiments that allow description of groups of up to three phosphate units and 27Al/17O heteronuclear that allows evidencing μ3 oxygen bridges in aluminate glasses and rediscussion of the structure of high temperature melts.

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