Ghosh, Sumana and Pal, Kalyan Sundar and Dandapat, Nandadulal and Ghosh, Jiten and Datta, Someswar (2013) Glass-ceramic glazes for future generation floor tiles. Journal of the European Ceramic Society, 33 (5). pp. 935-942. ISSN 0955-2219

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Abstract

Glaze in the CaO-MgO-Al2O3-SiO2 system was heated at 950-1190 degrees C for 2 h and characterized. X-ray diffraction showed that only -brace amount of mullite was formed in the glass-ceramic glaze heated at 950 degrees C. Both mullite and alpha-cordierite were formed in the glass-ceramic glaze heated at 1050 degrees C as primary and secondary phases. Glass-ceramic glazes heated at 1120 degrees C and 1190 degrees C contained alpha-cordierite and mullite as major and minor phases. Rietveld analysis revealed that the amount of alpha-cordierite increased and mullite decreased with increasing heating temperature. Field emission scanning electron microscopy showed presence of mullite crystals dispersed within residual glassy phase in the glass-ceramic glazes heated at 950 degrees C and 1050 degrees C. In the microstructures of glass-ceramic glazes heated at 1120 degrees C and 1190 degrees C alpha-cordierite crystals were mainly appeared. Energy Dispersive X-ray analysis corroborated X-ray diffraction results. Vickers rnicrohardness measurement demonstrated highest hardness (8.38 1 0.07 GPa) of the glass-ceramic glaze heated at 1190 degrees C. (C) 2012 Elsevier Ltd. All rights reserved.

Item Type:	Article
Subjects:	Refractories Engineering Materials
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	10 Sep 2013 08:46
Last Modified:	10 Sep 2013 08:46
URI:	http://cgcri.csircentral.net/id/eprint/2129

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