Dispersion and Rheological Properties of Alumina Freeze Casting Slurries Containing Nanoparticle/Whisker SiC

Tae Young Yang; Young Min Park; Gun Dae Lee; Seog Young Yoon; Ron Stevens; Hong Chae Park

doi:10.4028/www.scientific.net/KEM.280-283.1035

Paper Titles

Alumina Whiskers Formation during Self-Propagation High-Temperature Synthesis
p.1021

Study on Stability of Nano-Al₂O₃ Aqueous Suspension
p.1023

Colloidal In-Situ Consolidation Forming of Al₂O₃ Ceramics Using Modified Starch
p.1027

Surface Modification of Al₂O₃ Fine Powders and Application in Epoxy Resin
p.1033

Dispersion and Rheological Properties of Alumina Freeze Casting Slurries Containing Nanoparticle/Whisker SiC
p.1035

Rheological Behaviors of Alumina Aqueous Suspensions
p.1039

Effects of Solid Volume Fraction on the Gelcasting of Alumina Suspensions
p.1041

Modification of Al₂O₃ Microfiltration Membrane by Nano-ZnO Coating
p.1045

Mechanical and Wear Properties of Al₂O₃-15wt%ZrO₂ Composites
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 280-283Dispersion and Rheological Properties of Alumina...

Dispersion and Rheological Properties of Alumina Freeze Casting Slurries Containing Nanoparticle/Whisker SiC

Abstract:

The sedimentation density significantly decreased after addition of dispersant; the effect was more pronounced with pure alumina, as compared with SiC-containing slurry. With further addition of surfactant, the sedimentation density increased somewhat, but decreased with binderadditions. The suspension viscosity generally behaved in an opposite manner to the sedimentation density, i.e., low sedimentation density gave high low-shear viscosity, indicative of high structure formation in the suspended particles. Shear rate rheological measurements showed continuous shear thinning behavior.

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Key Engineering Materials (Volumes 280-283)

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1035-1038

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https://doi.org/10.4028/www.scientific.net/KEM.280-283.1035

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Online since:

February 2007

Authors:

Tae Young Yang, Young Min Park, Gun Dae Lee, Seog Young Yoon, Ron Stevens, Hong Chae Park

Keywords:

Alumina/SiC Nanopowder/SiC Whisker, Freeze Casting, Processing Additives

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