Journal
CERAMICS INTERNATIONAL
Volume 37, Issue 6, Pages 2015-2019Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2011.01.020
Keywords
8YSZ; Tiron; Rheology; Zeta-potential
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In this research, 8 mol% yttria stabilized zirconia (8YSZ) powder were dispersed in de-ionized water by the use of different amounts of Tiron as dispersant. The results of rheological and sedimentation measurements of each suspension were evaluated and the optimum amount of Tiron was selected (0.8% Tiron). Also, various pH were investigated and the best stabilized suspension is achieved at pH 10. Furthermore, the zeta potential of suspension with and without adding dispersant was obtained. The isoelectric point (IEP) of as-received 8YSZ powder was about 8.5 and shifted obviously to acidic region after adding dispersant to the suspension. (C) 2011 Published by Elsevier Ltd and Techna Group S.r.l.
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