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1D/2D NMR investigation of borophosphate glasses
Gregory Tricot  1@  
1 : Laboratoire de Spectrochimie Infrarouge et Raman - UMR 8516  (LASIR)  -  Website
Université de Lille, Sciences et Technologies, Centre National de la Recherche Scientifique : UMR8516
Université de Lille, Sciences et Technologies - Bâtiment C5 - 59655 Villeneuve dÁscq Cedex -  France

The local and medium range orders of the borophosphate glass network have been analysed by 11B/31P correlation nuclear magnetic resonance. A high field NMR protocol (18.8 T), including recently developed NMR sequences, has been applied on different borophosphate systems (sodium, lithium, tin -borophosphate) during the last decade. This contribution summarizes how NMR provides new insights onto the nature of the mixed borophosphate species, the distribution of borate units in the glass network, the formation of BOB bonds and the presence of POB3 linkages.


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