Preparation and Microstructure of Bauxite Ceramic Microsphere


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In this paper, microspheres were prepared by using Chinese bauxite as raw materials through centrifugal spray drying method. The microstructure and composition of ceramic microsphere were investigated by X-ray diffraction, scanning electron microscope and X-ray energy spectrum. The particle size was 10~100#m. The XRD analysis reveals that the main crystalline phase of the ceramic microsphere were α-Al2O3 and mullite (3Al2O3•2SiO2). The Al2O3 content (chemical composition) of the microspheres was little more than 70%, and the molar ratio of Al2O3/SiO2 was near to the molar ratio of alumina and silica of mullite.



Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong




X. S. Cheng et al., "Preparation and Microstructure of Bauxite Ceramic Microsphere", Key Engineering Materials, Vols. 336-338, pp. 1124-1126, 2007

Online since:

April 2007




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