Short-range structure and thermal properties of lead tellurite glasses

Kumar, Hirdesh; Kaur, Amarjot; Khanna, Atul; González Martínez, Fernando

doi:10.1063/1.4980457

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Identificadores

URI: http://hdl.handle.net/10902/13075

DOI: 10.1063/1.4980457

ISBN: 978-0-7354-1500-3

ISSN: 0094-243X

ISSN: 1551-7616

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, 070022 (2017), and may be found at https://doi.org/10.1063/1.4980457

Publicado en

AIP Conference Proceedings, 2017, 1832, 070022

61st DAE Solid State Physics Symposium, Bhubaneswar, Odisha, India, 2017

Editorial

American Institute of Physics

Enlace a la publicación

https://doi.org/10.1063/1.4980457

Palabras clave

Tellurite glasses

Thermal properties

Short-range structure

Raman studies

Resumen/Abstract

PbO-TeO2 glasses having composition: xPbO–(100 - x)TeO2 (x = 10, 15 and 20 mol%) were prepared by melt quenching and characterized by X-ray diffraction,density measurements, differential scanning calorimetry and Raman spectroscopy. Glass density increases from 5.89 to 6.22 g cm-3 with increase in PbO concentration from 10 to 20 mol%, due to the replacement of TeO2 by heavier PbO. DSC studies found that glass transition temperature (Tg) decreases from a value of 295°C to 281°C. Raman studies found that glass short-range structure consists of TeO4 and TeO3 structural units and that PbO modifies the network by the structural transformation: TeO4 to TeO3.

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