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Published in:

Volume 5 Issue 12
December-2018
eISSN: 2349-5162

Unique Identifier

JETIR1908A56

Page Number

724-728

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Title

STRUCTURE, THERMAL PROPERTIES AND MIXED ALKALI EFFECT IN Li2O AND Na2O DOPED BORATE GLASSES

ISSN

2349-5162

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"STRUCTURE, THERMAL PROPERTIES AND MIXED ALKALI EFFECT IN Li2O AND Na2O DOPED BORATE GLASSES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.724-728, December 2018, Available :http://www.jetir.org/papers/JETIR1908A56.pdf

Abstract

The thermal and structural properties of melt-quenched Li2O and Na2O doped borate glasses were investigated. The non-crystalline nature of the as-quenched samples has been established by XRD studies. The structural and thermal properties of the present glasses have been studied using Fourier transform infrared (FTIR) spectroscopy and differential scanning calorimetry (DSC). The formation of both BO3 and BO4 units in the studied samples has been ascertained by the FTIR studies. The nonlinear variation of peak positions of B-O bonds of stretching vibrations validate the occurrence of mixed alkali effect. The glass transition temperature (Tg) and thermal stability (∆t) exhibited a non-linear variation with increase in (Li2O+Na2O) content. With increasing the concentration of dopants, the Tg and ∆t respectively exhibited maxima and minima at x=0.30. This kind of behavior has been attributed to the structural modifications occurring in the network as a function of compositional variation. This is considered to be the signature for a possible mixed alkali effect taking place in the present glass systems.

Key Words

Borate Glasses; Mixed Alkali Effect; FTIR; DSC

Cite This Article

"STRUCTURE, THERMAL PROPERTIES AND MIXED ALKALI EFFECT IN Li2O AND Na2O DOPED BORATE GLASSES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp724-728, December 2018, Available at : http://www.jetir.org/papers/JETIR1908A56.pdf

Publication Details

Published Paper ID: JETIR1908A56
Registration ID: 226619
Published In: Volume 5 | Issue 12 | Year December-2018
DOI (Digital Object Identifier): http://doi.one/10.1729/Journal.23024
Page No: 724-728
ISSN Number: 2349-5162

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Cite This Article

"STRUCTURE, THERMAL PROPERTIES AND MIXED ALKALI EFFECT IN Li2O AND Na2O DOPED BORATE GLASSES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp724-728, December 2018, Available at : http://www.jetir.org/papers/JETIR1908A56.pdf




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