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Structural and thermal properties of vanadium tellurite glasses

Abstract: V2O5-TeO2 glasses containing 10 to 50 mol% V2O5 were prepared by melt quenching and characterized by X-ray diffraction (XRD), density, Differential Scanning Calorimetry (DSC) and Raman studies.XRD confirmed the amorphous nature of vanadium tellurite samples. The density of the glasses decreases and the molar volume increases on increasing the concentration of V2O5. The thermal properties, such as glass transition temperature Tg, crystallization temperature Tc, and the melting temperature Tm were measured. Tg decreases from a value of 288°C to 232°C. The changes in Tg were correlated with the number of bonds per unit volume, and the average stretching force constant. Raman spectra were used to elucidate the short-range structure of vanadium tellurite glasses.

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Authorship: Kaur R., Kaur R., Khanna A., González F.,

Congress: DAE Solid State Physics Symposium (62º : 2017 : Mumbai, India)

Publisher: American Institute of Physics

Publication date: 10/04/2018

No. of pages: 4

Publication type: Conference object

DOI: 10.1063/1.5028826

ISSN: 0094-243X,1551-7616

Publication Url: https://doi.org/10.1063/1.5028826

UCrea Repository Read publication

Authorship

KAUR, RAJINDER

KAUR, RAMANDEEP

KHANNA, ATUL

JESUS FERNANDO GONZALEZ MARTINEZ

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