Direct Casting of Alumina Slurries Using Increase of Ionic Strength

Shinsuke Imaeda; Ayumi Suzuki; Osamu Sakurada; Minoru Hashiba

doi:10.14853/pcersj.2002F.0.199.0

15th Fall Meeting of The Ceramic Society of Japan

DOI https://doi.org/10.14853/pcersj.2002F.0.199.0

Conference information

Host: The Ceramic Society of Japan

Direct Casting of Alumina Slurries Using Increase of Ionic Strength

Shinsuke Imaeda, Ayumi Suzuki, Osamu Sakurada, Minoru Hashiba

Author information

Keywords: Alumina, Direct Casting, Rheology, Ionic Strength, Ammonium polyacrylate

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 199

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Abstract

A new direct casting method of aqueous high solids loading alumina slurries stabilized by ammonium polyacrylate has been developed. The dissolving of yittria into the alumina slurries gradually increased the ionic strength of those slurries, and then, the slurries were coagulated. As a result, the homogeneous green compact was obtained. The relative density of the sintered compact was 99.4%T.D. and 500MPa of the bending strength was achieved in that compact (heating temperature: 1550°C).

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