Structure-property correlation in BaO-TiO2-B2O3 glasses: glass stability, optical, hydrophobic, and dielectric properties

Paramesh, Gadige and Varma, Kalidindi BR (2013) Structure-property correlation in BaO-TiO2-B2O3 glasses: glass stability, optical, hydrophobic, and dielectric properties. In: International Journal of Applied Glass Science, 4 (3). pp. 248-255.

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Abstract

Glasses in the x(BaO-TiO2)-B2O3 (x = 0.25, 0.5, 0.75, and 1 mol.) system were fabricated via the conventional melt-quenching technique. Thermal stability and glass-forming ability as determined by differential thermal analysis (DTA) were found to increase with increasing BaO-TiO2 (BT) content. However, there was no noticeable change in the glass transition temperature (T-g). This was attributed to the active participation of TiO2 in the network formation especially at higher BT contents via the conversion of the TiO6 structural units into TiO4 units, which increased the connectivity and resulted in an increase in crystallization temperature. Dielectric and optical properties at room temperature were studied for all the glasses under investigation. Interestingly, these glasses were found to be hydrophobic. The results obtained were correlated with different structural units and their connectivity in the glasses.

Item Type:	Journal Article
Publication:	International Journal of Applied Glass Science
Publisher:	Wiley Periodicals, Inc
Additional Information:	Copyright of this article belongs to Wiley Periodicals, Inc.
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	24 Sep 2013 08:33
Last Modified:	24 Sep 2013 08:33
URI:	http://eprints.iisc.ac.in/id/eprint/47423

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