Low-Density Ceramic Microspheres Prepared from Kaolinite and Magnesite
Low density ceramic microspheres were prepared using kaolinite and magnesite as the main raw materials. The influences of sintering temperatures and holding time on the properties were studied. The results showed that the main crystal phases of ceramic microspheres were indialite, mullite and spinel. The volume density of the as-prepared ceramic microspheres was apparently lower than that of normal alumina microspheres. When the proportion of kaolinite and magnesite changed, the best sintering temperatures and the optimum holding time were slightly different.
Keywordsceramic microsphere kaolinite magnesite low density
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- Brandau, T.B., Randau, E., Imhoff, J.: Ceramic microsphere production systems. Processing Technol. 85 (2006)  31–32Google Scholar
- Zhao, J., Yan, C.J., Luan, Y.W., et al.: Preparation of proppants with flint clay and their properties. China Powder Sci. and Technol. 16 (2010) Google Scholar
- Lv, B.Q., Liu, S., Bi, W.Y., et al.: Study on preparation process for low density ceramisite proppant. Foundry Technol. 33 (2012)  771–773Google Scholar
- Cheng, X.S., Zeng, L.K., Li, X.Y., et al.: Preparation and microstructure of bauxite ceramic microsphere. Trans Tech Publications 336–338 (2007) 1124–1126Google Scholar