Optimization Study on the Rheological Behavior of Alumina Suspensions

Journal of Inorganic Materials

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Optimization Study on the Rheological Behavior of Alumina Suspensions

LIU Yang-Qiao; GAO Lian

State Key Lab of High Performance Ceramics fc Superfine Microstructures; Shanghai Institute of Ceramics; Shanghai 200050; China

Received:2002-09-04 Revised:2002-12-16 Published:2003-11-20 Online:2003-11-20

Abstract

Abstract: The influence of various polyelectrolyte dispersants on the rheological properties of sub-micron alumina suspensions was investigated. Stable 58vol% alumina suspensions suitable for casting was prepared by optimizing the factors including pH, dispersant type and amount, etc. Green compacts with homogeneous microstructures were obtained by the gel casting method. Finally, Al₂O₃ bodies sintered at 1600℃for 2h, with a relative dencity more then 98% were fabricated.

Key words: alumina, dispersion, rheology, gel casting

CLC Number:

O648

LIU Yang-Qiao,GAO Lian. Optimization Study on the Rheological Behavior of Alumina Suspensions[J]. Journal of Inorganic Materials.

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Optimization Study on the Rheological Behavior of Alumina Suspensions

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