Paper Title:
Investigation on the Sedimentation Behavior of the α-Al2O3 Aqueous Suspension by the Combination of Two Dispersants
  Abstract

The effect of three different types dispersants on the stability behavior of alumina aqueous suspension were investigated by through sedimentation experiment , Zeta potential ,and residual porosity of sintered sample. The results showed that the optimal content and optimal sedimentation pH value of the three different types dispersants were 1.0% and aging at pH9 for PAA-NH4, 0.8% and nearly independent of pH value for Arabic gum , 0.4, 0.2 and aging at pH9 for PAA-NH4 and Arabic gum,respectively. The dispersion effect of the three different type dispersants was PAA-NH4 and Arabic gum> PAA-NH4 > Arabic gum. Studies have shown that the combination of PAA-NH4 and Arabic gum has a better effect than one of them on the stability of suspension. Compared with single dispersant, the sedimentation volumes of the two dispersants dispersing suspension is reduced 3%, the dosage of dispersants is reduced 26.7%.

  Info
Periodical
Key Engineering Materials (Volumes 474-476)
Edited by
Garry Zhu
Pages
687-692
DOI
10.4028/www.scientific.net/KEM.474-476.687
Citation
F. Z. Li, Y. Q. Han, B. Guo, "Investigation on the Sedimentation Behavior of the α-Al2O3 Aqueous Suspension by the Combination of Two Dispersants", Key Engineering Materials, Vols. 474-476, pp. 687-692, 2011
Online since
April 2011
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: Oleg Vasylkiv, Yoshio Sakka, Valeriy Skorokhod
2347
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
Authors: Yun Huang, Ling Chen, Jian Dong Ye, Xiao Xi Li, Xi Mei Zhang, Chen Hui Ju
Abstract:A modified starch was employed to be the pore former in the in-situ consolidation forming process of porous alumina ceramic. In order to...
679
Authors: Tamara Molina, Monica Vicent, Enrique Sánchez, Rodrigo Moreno
V. EPD in Ceramic Processing
Abstract:Alumina-aluminium titanate (A-AT) composites and laminates have been recently investigated because they can provide improved flaw tolerance...
203