Colloidal Dispersion of High Solid Loading ZnO Powders with 2 wt% Al2O3 Stabilized with Polyelectrolyte

Hai Lin Wang; Yi Hua Sun; Xin Lv; Liang Fang; Ping Feng; Xiao Hua Sun; Cai Hua Huang; Hai Zhou Yu

doi:10.4028/www.scientific.net/AMM.665.247

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 665Colloidal Dispersion of High Solid Loading ZnO...

Colloidal Dispersion of High Solid Loading ZnO Powders with 2 wt% Al₂O₃ Stabilized with Polyelectrolyte

Abstract:

The high solid loading slurries with ZnO-Al₂O₃ powders stabilized with polyelectrolytes have been studied. The influence of Sodium poly(acrylate) (PA 30) on the fluidity and stablility of the slurries was investigated. Morphological features of ZnO-Al₂O₃ powders in suspension and fracture surface of green compact were observed using TEM and SEM. The slurries with pH 9 were prepared after milled using ZnO mixed powders and the PA 30 solution of pH 8. As 0.2 wt% PA 30 added, the lowest viscosity and the highest sediment were obtained. ZnO and Al₂O₃ particles had been homogeneous dispersed. The maximum density (66.7 %TD) of green compact was obtained.

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Applied Mechanics and Materials (Volume 665)

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247-250

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https://doi.org/10.4028/www.scientific.net/AMM.665.247

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Online since:

October 2014

Authors:

Hai Lin Wang, Yi Hua Sun*, Xin Lv, Liang Fang, Ping Feng, Xiao Hua Sun, Cai Hua Huang, Hai Zhou Yu

Keywords:

Alumina, Colloidal Dispersion, Mixed Powders, Suspension, Zinc Oxide (ZnO)

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