Shape and Distribution of Pores in SiC Ceramic Membrane Supports Formed by Extrusion Molding

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Abstract:

The SiC ceramic membrane supports by using four different processes were prepared by extrusion molding process. Shape and distribution of pores in SiC ceramic membrane supports were observed by SEM, Meanwhile the O-ring strength was measured. By analyzing the relationship between pores’ shape, distribution and O-rings strength, the optimal data of apparent porosity and the optimal pores’ shape and distribution was obtained. By means ofusing similar particle sizes, particles modification, controlling drying rate of the green body and controlling the contents of glass phase in neck part between SiC particles formed at the high temperature, the SiC ceramic membrane supports with the O-ring strength greater than 20 MPa were prepared.

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99-102

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February 2016

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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[1] Avci G G, Misirli Z, Günay V. Processing and characterization of microfiltration supports prepared from alumina powders[J]. Ceramics international, 1996, 22(1): 23-26.

DOI: 10.1016/0272-8842(95)00048-8

Google Scholar

[2] Maarten Biesheuvel P, Verweij H. Design of ceramic membrane supports: permeability, tensile strength and stress[J]. Journal of membrane science, 1999, 156(1): 141-152.

DOI: 10.1016/s0376-7388(98)00335-4

Google Scholar

[3] Shqau K, Mottern M L, Yu D, et al. Preparation and Properties of Porous α-Al2O3 Membrane Supports[J]. Journal of the American Ceramic Society, 2006, 89(6): 1790-1794.

DOI: 10.1111/j.1551-2916.2006.01037.x

Google Scholar

[4] Kwon S, Messing G L. Constrained densification in boehmite–alumina mixtures for the fabrication of porous alumina ceramics[J]. Journal of materials science, 1998, 33(4): 913-921.

Google Scholar

[5] XieZhipeng. Structural Ceramics. Beijing: Tsinghua Press (2011).

Google Scholar