Paper Title:
Impedance Spectroscopy Evolution upon Sintering of Alumina Bodies Containing Al-Rich Anodizing Sludge
  Abstract

Al-rich sludge produced from industrial anodising and surface treatment processes had been tested in the fabrication of alumina-based materials, by using plastic extrusion as shaping technique. Long rods were produced using a vacuum screw extruder, by a careful control of all relevant processing parameters. Then, thick discs were obtained by cutting dried selected rods, to be tested as probes for sintering-dependent electrical properties. The sintering process was followed by common dilatometric/thermal analyses and results were interrelated with the evolution of electrical conductivity, estimated by impedance spectroscopy technique (IS). Results show that sintering-dependent morphological evolution up to 1300°C strongly affects the electrical behaviour of samples, and as a consequence IS seems to be a useful method to follow the firing process.

  Info
Periodical
Materials Science Forum (Volumes 636-637)
Edited by
Luís Guerra ROSA and Fernanda MARGARIDO
Pages
91-97
DOI
10.4028/www.scientific.net/MSF.636-637.91
Citation
M.J. Ribeiro, J.A. Labrincha, "Impedance Spectroscopy Evolution upon Sintering of Alumina Bodies Containing Al-Rich Anodizing Sludge", Materials Science Forum, Vols. 636-637, pp. 91-97, 2010
Online since
January 2010
Export
Price
$32.00
Share

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

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

Authors: S. Bueno, Rodrigo Moreno, Carmen Baudín
61
Authors: C. Ghiţulica, Ecaterina Andronescu, G. Dumitru, Stefania Stoleriu
2247
Authors: Seong Min Choi, Uraiwan Leela-adisorn, Sawao Honda, Shinobu Hashimoto, Hideo Awaji
Abstract:Intra-type structure of ceramic matrix composites (CMCs) can improve the mechanical properties of ceramic materials. In this work, we used...
115
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: R. Svinka, V. Svinka, G. Bula, T. Juettner, E. Palcevskis
Abstract:Light weight materials are produced according to the aerated concrete technology using slurries. In concentrated suspensions pore formation...
2266