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Advances in Materials Science and Engineering
Volume 2013 (2013), Article ID 142343, 12 pages
http://dx.doi.org/10.1155/2013/142343
Research Article

Modelling the Influence of Manufacturing Process Variables on Dimensional Changes of Porcelain Tiles

1Programa de Pós-Graduação em Ciência e Engenharia de Materiais (PGMAT), Universidade Federal de Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil
2Departamento de Ingeniería Química y Ambiental, Universidad Nacional de Colombia, 111321 Bogotá, Colombia
3Instituto de Tecnología Cerámica (ITC), Asociación de Investigación de las Industrias Cerámicas, Universitat Jaume I, 12006 Castellón, Spain

Received 24 February 2013; Revised 9 September 2013; Accepted 10 September 2013

Academic Editor: Augusto Deus

Copyright © 2013 Dolly Santos-Barbosa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A model to study the influence of main process variables (powder moisture, maximum compaction pressure, and maximum firing temperature) on the intermediate variables (mass, dry bulk density, size, and thickness) and the final dimensions of porcelain tiles is proposed. The properties of dried and fired bodies are basically determined by the process parameters when the physical, chemical, and mineralogical characteristics of the raw material are kept constant. For a given set of conditions, an equation could be sought for each property as a function of raw materials and processing. In order to find the relationship between moisture content and compaction pressure with dry bulk density, springback, and drying and firing shrinkage, a laboratory experimental design with three factors and four levels was applied. The methodology was validated in lab scale for a porcelain tile. The final size and thickness were estimated, and the influence of the main process variables was analysed.