Extrusion of ceramic emulsions: Plastic behavior
authors Vitorino, N; Freitas, C; Ribeiro, MJ; Abrantes, JCC; Frade, JR
nationality International
journal APPLIED CLAY SCIENCE
author keywords Plasticity; Ceramic emulsions; Extrusion; Red clay; Kaolin; Alumina
keywords PARAFFIN EMULSIFIED SUSPENSIONS; CELLULAR CERAMICS; PASTES; ALUMINA
abstract This paper presents the plastic characterization of several extruded ceramic emulsions prepared by emulsification of different ceramic suspensions: i) red clay, ii) kaolin and iii) alumina, which were performed in order to obtain some insights to upscale the ceramic emulsion extrusion process. Stress-deformation curves obtained by compression of the pre-extruded bodies were used to obtain the plasticity characterization of the emulsions with different water contents. Deformation amplitude, yield stress and rupture stress revealed the most sensitive parameters, thus giving valuable information about the plastic behavior of the ceramic emulsions, as well as important guidelines for extrusion upscale. The microstructural features of the sintered bodies were kept constants even after the extrusion process, making this process be feasible for large-scale production of cellular ceramic bodies. (C) 2014 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 0169-1317
year published 2014
volume 101
beginning page 315
ending page 319
digital object identifier (doi) 10.1016/j.clay.2014.08.021
web of science category Chemistry, Physical; Materials Science, Multidisciplinary; Mineralogy
subject category Chemistry; Materials Science; Mineralogy
unique article identifier WOS:000345807700043
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journal analysis (jcr 2017):
journal impact factor 3.641
5 year journal impact factor 3.616
category normalized journal impact factor percentile 75.255
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