Ceramic membranes can be applied under extreme operating conditions such as low pH, high pressure and high temperature. In particular SiC has excellent mechanical properties and also has excellent properties related to membrane performance. However, high processing temperature increases cost of SiC products and thus limit’s its use. In this study oxidation bonding technique was used to fabricate cost-effective SiC microfiltration membrane at low temperature. The oxidation behavior at different thermal treatments was related with pore morphology and ultimately the membrane permeability. We have found that the membrane made by coating of oxidation bonded SiC layer over clay-bonded SiC support, sintered at 1000-1100°C could make a defect-free microfiltration membrane with pure water permeability above 700 LMH per bar. The membrane has narrow pore size distribution with average pore size about 0.1 μm.

• 송인혁(재료연구소(KIMS), 과학기술연합대학원대학교(UST), Korea Institute of Materials Science (KIMS), Korea University of Science & Technology (UST)) | In-Hyuck Song
• Syed Zaighum Abbas Bukhari(과학기술연합대학원대학교(UST), Korea University of Science & Technology (UST))
• 하장훈(재료연구소(KIMS), Korea Institute of Materials Science (KIMS)) | Jang-Hoon Ha
• 이종만(재료연구소(KIMS), Korea Institute of Materials Science (KIMS)) | Jongman Lee