Preparation and Microstructure of Bauxite Ceramic Microsphere

Abstract:

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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.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1124-1126

DOI:

10.4028/www.scientific.net/KEM.336-338.1124

Citation:

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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Price:

$35.00

[1] L.K. Ji and J.J. Yang: Inorg. Chem. Vol. 34 (2002), pp.42-43.

[2] D.Y. Zhang: J. Jinzhou Normal College (Natural Science Edition). Vol. 23 (2002), pp.25-26.

[3] F.Y. Liu: China Building Material. Vol. 4 (1998), pp.18-20.

[4] A. Miserez, A. Rossoll and A. Mortensen: Acta Mater. Vol. 52 (2004), p.1337� 1351.

[5] R.X. Guo and G. Lormang: Kunming Univ of Sci and Tech. Vol. 26 (2001), p.14−17, 29.

[6] X.Y. Zhou: Composite materials. (Chemical Industry Publishing Company, China 2005).

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