COMPARATIVE ANALYSIS OF POROSITY CERAMIC COATING PLATE BASED ON THE TEMPERATURE OF SINTERIZATION

Reference	Presenter	Authors (Institution)	Abstract
12-037	Kelliany Medeiros Costa	Costa, K.M.(Universidade Federal de Alagoas); Carnaúba, T.M.(Universidade Federal de Alagoas); de Abreu, F.C.(Universidade Federal de Alagoas); Cavalcanti da Silva, J.E.(Universidade Federal de Alagoas); Macedo Friess Xavier, W.R.(Universidade Federal de Alagoas); Holanda Tavares Neto, J.I.(Universidade Federal de Alagoas);	Manufacturing process of ceramic tile coating starts with extraction of the raw material, in natural deposits which can be owned or outsourced. After collecting this material, formulation its necessary, according to the technical characteristics using scales or by volume fractionation: dry manufacturing route. These activities that transform a mixture into a ceramic mass, to the final products, need to follow other steps, which are divided into groups according to their physicochemical properties. The plates are used to coat walls and floors. The manufacturing sequence corresponds to the following steps: raw material, formulation, milling, granulation, pressing, drying, enameling and sintering. After drying, the ceramic plate is sent to the heating process, the heat treatment (800ºC - 1150ºC) in continuous ovens, giving final properties to the piece. In the methodological procedures, there is a critical analysis of the literature on the ceramic coating plate porosity during sintering phase, and the transformations resulting from the heat treatment in the firing phase. The present study shows significant results achieved, such as when temperature is above 1180 ° C, the plates gained porcelain characteristics based on the absorption of water, as also characteristics similar to semi-porosity between temperature range of 1120 ° C - 1150 ° C.
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