Plastic behaviour of different ceramic pastes processed by extrusion


A preliminary characterization of the plastic behaviour of several industrially-prepared ceramic pastes is presented, which was performed in order to gain some insights for preparing ceramic formulations Al-rich sludge-containing adapted for extrusion forming. Stress-deformation curves obtained by compression had been performed and related with the different types of ceramic formulations and their moisture contents. Deformation amplitude and rupture stress revealed the most sensitive parameters, thus giving valuable information about the plastic behaviour of ceramic pastes, as well as important guide lines to design extrudable formulations containing. The stress-deformation curves obtained with common industrial pastes are reproducible and relative differences are determined by the composition and amount of added water. The extrusion of fully recycled formulations made of Al-rich anodising sludge was found possible, but further improvements in working conditions should be achieved. (c) 2004 Elsevier Ltd and Techna Group S.r.l. All rights reserved.


Materials Science


Ribeiro, MJ; Ferreira, JM; Labrincha, JA

nossos autores

Partilhe este projeto

Publicações similares

Usamos cookies para atividades de marketing e para lhe oferecer uma melhor experiência de navegação. Ao clicar em “Aceitar Cookies” você concorda com nossa política de cookies. Leia sobre como usamos cookies clicando em "Política de Privacidade e Cookies".