%0 Journal Article
%T Influence of temperature and composition in the mechanical resistance and porosity of ceramic pieces
%A Jord芍n Vidal
%A M. M.
%A Sanfeliu Montolio
%A T.
%A de la Fuente Cullell
%A C.
%J Materiales de Construccion
%D 2001
%I Consejo Superior de Investigaciones Cient赤ficas
%X We have tried to establish a relationship between the raw material and the mechanical properties of ceramic pieces subjected to different firing processes, so under the determinant of the thermal process we have done a follow up on the petrogenetic process that the manufacture of ceramics represents. This is evaluated in terms of the mechanical behaviour of the ceramic tile bodies, which have been normalised and submitted to tests for flexion. The principal objective is to be able to indicate what the optimum firing temperature for each sample is, and to determine what it is in the ceramic body which offers the greatest resistance when a specific force is applied. The study of the texture of the ceramic body will be considered mainly in relation to the existent porosity, as well as its distribution, which conditions its characteristics and specifications. The relation between porosity and the parameters that describe the porous texture of the ceramic tile pieces studied is complicated because of the fact that these have many pores with a complex and irregular spatial disposition, with a broad distribution of forms and sizes, and as such they do not fit into established empirical equations. Se ha tratado de establecer la relaci車n entre materia prima y propiedades mec芍nicas de piezas cer芍micas sometidas a procesos de cocci車n diversos. Bajo el condicionante del proceso t谷rmico se realiza un seguimiento del proceso petrogen谷tico que representa la fabricaci車n cer芍mica y se eval迆a a trav谷s del comportamiento mec芍nico de probetas cer芍micas normalizadas y sometidas a ensayos de flexi車n. El objetivo principal es poder indicar cu芍l es la temperatura 車ptima de cocci車n para cada muestra y determinar cu芍l es aqu谷lla en que la probeta cer芍mica ofrece una mayor resistencia al aplicarle una determinada carga. El estudio de la textura de la matriz cer芍mica es de gran inter谷s en relaci車n con la porosidad, asi como su distribuci車n, que condiciona sus caracter赤sticas y aplicaciones. La relaci車n existente entre la porosidad y los par芍metros relacionados con la textura porosa es muy compleja debido a la distribuci車n irregular de formas y tama os de poro, que no se ajusta a ninguna ecuaci車n emp赤rica establecida, pero aun as赤 hay aproximaciones te車ricas que pueden permitir prevenir la relaci車n entre la porosidad y las propiedades mec芍nicas.
%U http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/376/422