Short-range structure and thermal properties of barium tellurite glasses

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URI: http://hdl.handle.net/10902/13074
ISBN: 978-0-7354-1500-3
ISSN: 0094-243X
ISSN: 1551-7616
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Autoría
Kaur, Amarjot; Khanna, Atul; González Martínez, FernandoAutoridad Unican
Fecha
2017-05
Derechos
© American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in AIP Conference Proceedings 1832, 070015 (2017) and may be found at https://doi.org/10.1063/1.4980450
Publicado en
AIP Conference Proceedings, 2017, 1832, 070015
61st DAE Solid State Physics Symposium, Bhubaneswar, Odisha, India, 2017
Editorial
American Institute of Physics
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Palabras clave
Tellurite glasses
Thermal Properties
Raman studies
Resumen/Abstract
BaO-TeO2 glasses containing 10 to 20 BaO mol% were prepared and characterized by X-ray diffraction, density measurements, differential scanning calorimetry and Raman spectroscopy. Glass density decreases with increase in BaO concentration from 10 to 20 mol%, due to replacement of heavier TeO2 by lighter BaO, however glass transition temperature (Tg) increases significantly from a value of 318°C to 327°C due to increase in average single bond enthalpy of the tellurite network. Raman studies found that glass short-range structure consists of TeO4 and TeO3 structural units and BaO modifies the network by producing the structural transformation: TeO4→ TeO3.
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