2024-03-29T12:21:43Zhttps://repositori.uji.es/oai/requestoai:repositori.uji.es:10234/495122023-04-26T07:13:30Zcom_10234_7033com_10234_9col_10234_8618
Repositori UJI
author
Amorós Albaro, José Luis
author
Orts Tarí, María José
author
Mestre Beltrán, Sergio
author
García Ten, Francisco Javier
author
Feliu Mingarro, Carlos
2012-10-22T11:18:03Z
2012-10-22T11:18:03Z
2010
Journal of the European Ceramic Society, 30, 1, p. 17-28
9552219
http://hdl.handle.net/10234/49512
http://dx.doi.org/10.1016/j.jeurceramsoc.2009.08.001
This study examines the effect of quartz particle size in raw material composition customarily used for the manufacture of porous single-fired wall tile bodies on the characteristics of the green tiles and on the thermal and mechanical properties of the fired tiles. Quartz particle size was varied, while the quantity and particle size of the other raw materials were kept constant. Tile compacts were formed by uniaxial pressing and fired at different peak temperatures. The resulting fired microstructure was then characterised and tile thermal and mechanical properties were determined. Microcrack formation around quartz particles leads to hysteresis of the coefficient of thermal expansion during heating and cooling. The studied mechanical and thermal properties are shown to be a function of the magnitude of the hysteresis and porosity. This relationship is independent of the operating variables (pressing pressure, operating temperature, and quartz particle size) used. The results obtained confirm that the green and fired properties of porous single-fired wall tiles may be considerably enhanced, while holding low shrinkage and high porosity, compatible with low moisture expansion, by reducing quartz particle size and appropriately adjusting the pressing pressure and peak firing temperature. This should enable thin and/or large-sized porous wall tiles to be manufactured, without (immediate or delayed) curvatures, and with a higher breaking load than that required by the standards. © 2009 Elsevier Ltd. All rights reserved.
eng
Final microstructure
Mechanical properties
Porosity
Thermal expansion
Traditional ceramics
Porous single-fired wall tile bodies: Influence of quartz particle size on tile properties
info:eu-repo/semantics/article