Studies on the Effect of Li2SO4 on the Structure of Lithium Borate Glasses
Data(s) |
11/02/1999
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Resumo |
Thermal and spectroscopic investigations have been carried out on a number of glasses with a wide range of compositions in the pseudoternary glass system, Li2SO4-Li2O-B2O3, to understand the role of sulfate ions in modifying the borate glass structure. Both nuclear magnetic resonance (NMR) and infrared (IR) spectroscopic results indicate that four-coordinate boron atoms are retained in the glass structure to a greater extent in sulfate-containing glasses than in pure lithium borate glasses. There seems to be some evidence for the existence of sulfoborate-type units in Raman spectra in the region of 800-960 cm(-1). These conclusions are supported by the observed behavior of glass transition temperatures and molar volumes. The possibility of formation of sulfoborate-type units is discussed from bonding and thermodynamic points of view. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/38812/1/Studies_on_the_Effect_of_Li2SO4.pdf Ganguli, Munia and Rao, KJ (1999) Studies on the Effect of Li2SO4 on the Structure of Lithium Borate Glasses. In: Journal of Physical Chemistry B, The, 103 (6). 920-930 . |
Publicador |
American Chemical Society |
Relação |
http://pubs.acs.org/doi/abs/10.1021/jp982930z http://eprints.iisc.ernet.in/38812/ |
Palavras-Chave | #Solid State & Structural Chemistry Unit |
Tipo |
Journal Article PeerReviewed |