Proceedings of the Korea Association of Crystal Growth Conference (한국결정성장학회:학술대회논문집)
- 2000.06a
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- Pages.151-163
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- 2000
Synthesis of Oxide Ceramic Powders by Polymerized Organic-Inorganic Complex Route
- Lee, Sang-Jin (Department of Materials Science and Engineering, Mokpo National University) ;
- Lee, Chung-Hyo (Department of Materials Science and Engineering, Mokpo National University) ;
- Waltraud M. Kriven (Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign)
- Published : 2000.06.01
Abstract
A polymerized organic-inorganic complexation route is introduced for the synthesis of oxide ceramic powders. Polyvinyl alcohol was used as the organic carrier for precursor ceramic gel. Porous and soft powders, which have a high specific surface area, were obtained after calcinating the aerated precursors. The PVA content and its degree of polymerization had a significant influence on the homogeneity of the final powder. In particular, attrition milling process with the porous powder resulted in ultra-fine particles. In the case of the preparation of cordierite powder, nano-size powder, which has a high specific surface area of 181 ㎡/g, was obtained by the milling process. The complexation route was also applied to the synthesis of unstable phase in room temperature like beta-cristobalite, high temperature form of silica.