Abstract

Silicon nitride-bonded silicon carbide multiphase ceramic ultrafiltration membranes were prepared by using SiC, silicon powder and nitrogen as raw materials and yttrium oxide as sintering aids. The membranes were characterized by XRD and SEM. The effects of different amounts of SiC on the crystal growth and properties of multiphase ceramic ultrafiltration membranes were investigated. When SiC is 10g, silica powder is 0.75g and yttria is 0.5g, the properties of the ceramic membranes are better, and the average pore size distribution is about 0.1μm.1

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