Paper Title:
Ceramic Properties of Alumina and Alumina-Mullite Pressed Bodies Based on Al-Rich Anodising Sludge
  Abstract

Alumina and alumina-mullite 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. 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°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°C for alumina and 1450°C for alumina-mullite.

  Info
Periodical
Materials Science Forum (Volumes 587-588)
Edited by
António Torres Marques, António Fernando Silva, António Paulo Monteiro Baptista, Carlos Sá, Fernando Jorge Lino Alves, Luís Filipe Malheiros and Manuel Vieira
Pages
743-747
DOI
10.4028/www.scientific.net/MSF.587-588.743
Citation
M.J. Ribeiro, J. A. Labrincha, "Ceramic Properties of Alumina and Alumina-Mullite Pressed Bodies Based on Al-Rich Anodising Sludge", Materials Science Forum, Vols. 587-588, pp. 743-747, 2008
Online since
June 2008
Export
Price
$35.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Won Seung Cho, Yeon Chul Yoo, Chin Myung Whang, Nam Hee Cho, Woon Suk Hwang, Jun Gyu Kim, Young Jae Kwon
Abstract:Porous alumina bodies were successfully prepared by spark plasma sintering of alumina powders with different amounts of graphite, and by...
1056
Authors: Wolfgang Tillmann, Miriam Gathen, Christian Kronholz
Abstract:Due to their better mechanical and physical properties diamond tools have largely replaced cemented carbide tools for machining of mineral...
1145
Authors: Shunkichi Ueno, Li Ming Lin, Hideo Nakajima
Abstract:A porous alumina with cylindrical pores was fabricated by unidirectional solidification under hydrogen gas flow (0.1 MPa) using alumina feed...
313
Authors: Juliane Vicenzi, Antonio S. Takimi, Ricardo B. Fonseca, Andrei Locatelli, Célia Fraga Malfatti, Carlos Pérez Bergmann
Abstract:Plasma sprayed alumina coating is applied in many industrial applications in order to promote wear and corrosion resistance. Nonetheless,...
86
Authors: Jian Lei Wang, Jiu Ming Liu, Shu Xia Ren
Chapter 1: Materials Engineering
Abstract:Silicon nitride powders high in β-phase content have been prepared by direct nitriding method. The silicon powders were first milled with...
58