Analysis of the influence of the fusibility and coefficient of thermal expansion on the centre curvature of ceramic tiles - a statistical approach

Reference	Presenter	Authors (Institution)	Abstract
16-039	Antonio Gabriel Del Rio	Del Rio, A.G.(Serviço Nacional de Aprendizagem Industrial); Talarico, A.B.(Serviço Nacional de Aprendizagem Industrial); Rodrigues, B.C.(Serviço Nacional de Aprendizagem Industrial); Santos, W.R.(Serviço Nacional de Aprendizagem Industrial); Gonçalves, P.S.(Serviço Nacional de Aprendizagem Industrial);	The semiporous ceramic tiles are composed of three layers: the ceramic mass, the engobe and the glaze, which have specific characteristics of fusibility and thermal expansion, that interact with each other in the firing process, and can develop centre curvatures. These curvatures have a direct influence by these characteristics and can cause problems in the quality of the finished product. The present work aims at analyzing how different fusibilities and coefficients of thermal expansion influence the development of the centre curvatures of ceramic coatings during the firing. For the development of this work was structured a Design of Experiments with different combinations of engobes and glazes to analyze the acceptable rates of curvature for semiporous.
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