Ceramic Properties of Alumina and Alumina-Mullite Pressed Bodies Based on Al-rich Anodising Sludge
authors Ribeiro, MJ; Labrincha, JA
editors Marques, AT; Silva, AF; Baptista, APM; Sa, C; Alves, FJLA; Malheiros, LF; Vieira, M
nationality International
journal ADVANCED MATERIALS FORUM IV
author keywords Al-anodising sludge; alumina; alumina-mullite; ceramic properties
abstract Alumina and alumina-mullite based refractory ceramic materials were produced from formulations based on an industrial AI-rich sludge derived from the wastewater treatment of the aluminium anodising process. Other ceramic raw materials like diatomite was also added, which can be consider as a by-product. Cylindrical samples processed by uniaxial dry pressing were sintered at different temperatures (between 1400-1650 degrees C, 1 hour soaking) to study the ceramic properties evolution. The performance of fired 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 alumina and 1450 degrees C for alumina-mullite.
publisher TRANS TECH PUBLICATIONS LTD
issn 0255-5476
year published 2008
volume 587-588
beginning page 743
ending page +
web of science category Engineering, Multidisciplinary; Materials Science, Multidisciplinary
subject category Engineering; Materials Science
unique article identifier WOS:000259898200146

Sponsors

1suponsers_list_ciceco.jpg