Properties of sintered mullite and cordierite pressed bodies manufactured using Al-rich anodising sludge
authors Ribeiro, MJ; Labrincha, JA
nationality International
journal CERAMICS INTERNATIONAL
author keywords mullite; cordierite; Al-anodising sludge; ceramic properties
keywords CERAMIC BODIES; STRENGTH; ALUMINA
abstract Mullite and cordierite based refractory ceramic materials were produced from formulations based on an industrial Al-rich sludge derived from the wastewater treatment of the aluminium anodising process. Some common ceramic raw materials, like ball clay, kaolin, diatomite and talc, were also added. Cylindrical samples processed by uniaxial dry pressing were sintered at different temperatures (between 1300 and 1650 degrees C, 1 h soak at each temperature) to study the ceramic properties. The fired properties of materials was evaluated (firing shrinkage, water absorption, bending strength, thermal expansion coefficient, refractoriness and SEM microstructure) and demonstrated that optimal properties were obtained at 1650 degrees C for mullite and 1350 degrees C for cordierite. (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
publisher ELSEVIER SCI LTD
issn 0272-8842
year published 2008
volume 34
issue 3
beginning page 593
ending page 597
digital object identifier (doi) 10.1016/j.ceramint.2006.12.005
web of science category Materials Science, Ceramics
subject category Materials Science
unique article identifier WOS:000254698300020
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journal impact factor 3.83
5 year journal impact factor 3.513
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