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Open Access item Effect of firing temperature on sintering of porcelain stoneware tiles

Other Titles:Efecto de la temperatura de cocción en la sinterización de baldosas de gres porcelánico
Authors:Martín-Márquez, Jorge
Rincón López, Jesús María
Romero, Maximina
Keywords:Sintering; Porcelain stoneware; Technological properties; Functional applications
Issue Date:2008
Publisher:Elsevier
Citation:Ceramics Internacional, 34 (2008) 1867-1873
Abstract:Porcelain stoneware tile is a non-equilibrium porcelain material produced by a fast firing process of kaolinitic clay, quartz and feldspar mixtures. This building material, generally used in pavements and also as wall covering and ventilated façades, is endowed with high technological properties such as low water absorption, high bending strength and abrasion resistance and excellent chemical and frost resistance. These properties cause that porcelain stoneware tile was actually the material with the highest increase in production and sales over all other ceramic building material. Nevertheless, there is a scarcity of high quality research focused on the effect of mullite growth on technological properties of porcelain stoneware tile and on the effect of different fluxing agents on both mullite growth and evolution of physical and technological properties during firing. In this paper, the behaviour of a potassic porcelain stoneware body during the firing process is investigated. A porcelain stoneware composition was prepared by mixing 50% kaolinitic clay, 40% feldspar and 10% quartz. The samples were sintered following a fast firing process. The sintering behaviour of the fired samples was evaluated by linear shrinkage, water absorption and porosity measurements. Both green powder and fired samples were characterized by means of differential thermal analysis (DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), dilatometry and bending strength measurements.
Publisher version (URL):http:\\linkinghub.elsevier.com/retrieve/pii/S027288420700185X
URI:http://hdl.handle.net/10261/9317
ISSN:0272-8842
???metadata.dc.identifier.doi???:10.1016/j.ceramint.2007.06.006
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