Preparation and Structure Characterization of Mullite Fiber Porous Ceramic

Abstract:

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Mullite fiber porous ceramic was prepared by forced liquid displacement forming and using Mullite precursor sols as binders. SEM studies have shown that the uniformity of integral ceramic is good although the binder and fiber congregate slightly. Mullite precursor sols spread to films or congregate together in miniature. The mullite sol binders between fibers limit to the contact points and the redundant binders form flat film even if they are superfluous, and the pores were not built up even where the binders congregate badly. The results from mercury porosimetry testing of the mullite fiber porous ceramic showed the relationship of cumulative intrusion and diameter for mullite fiber porous ceramic using colloidal mullite binder, and the mean pore size is 45.6μm. The pore size distribution is very broad, from about 0.2 to 174.9μm.

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

809-811

DOI:

10.4028/www.scientific.net/KEM.368-372.809

Citation:

H. Wang and L. K. Zeng, "Preparation and Structure Characterization of Mullite Fiber Porous Ceramic", Key Engineering Materials, Vols. 368-372, pp. 809-811, 2008

Online since:

February 2008

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$35.00

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