Preparation and Properties of Silicon Carbide Porous Ceramic Filter Membrane

Abstract:

Spin coating method was adopted for preparation of two types of SiC filter membrane with different particles size. Sintering temperature was set at 1300°C. SEM was performed in order to characterize its micro-structure. For measuring the porosity of the membrane, we used Archimedes drainage method. The filter pressure testing system was used to character the membrane filter pressure drop. The experiment results indicated that, when the filter membrane was composed of average diameters 45μm and 23μm SiC particles, with their thickness reached about 300μm and 150μm respectively and the amount of ceramic binder was 10%, the porosity of the membrane achieved 43%, the surface of filtration membrane structure was uniform, and its filter pressure was smaller. On the premise of satisfying specific filtering accuracy and efficiency, larger size of silicon carbide particle could offer better performance of the membrane.

• Periodical: Key Engineering Materials (Volume 655)
• Pages: 36-40
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.655.36
• Online since: July 2015
• Authors: Guang Hao Sun*, Xiang Yun Deng, Yang Shan Sun, Chuang Jun Huang, Xin Guan
• Keywords: Filter Membrane, Filter Pressure Drop, Porosity, Silicon Carbide (SiC), Spin Coating

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