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J. Korean Ceram. Soc. > Volume 43(6); 2006 > Article
Journal of the Korean Ceramic Society 2006;43(6): 351.
doi: https://doi.org/10.4191/kcers.2006.43.6.351
플라이 애쉬를 이용한 코디어라이트 세라믹 하니컴 필터 제조 및 물성
김성진, 방희곤, 박상엽
강릉대학교 세라믹공학과
Fabrication and Physical Properties of Honeycomb Type Cordierite Ceramic Filter Using Fly-Ash
Sung-Jin Kim, Hee-Gon Bang, Sang-Yeup Park
Department of Ceramics Engineering, Kangnung National University
The fabrication process of the honeycomb filter was investigated using synthesized cordierite with the addition of pore former and extrusion additives (either organic matter or graphite). Also, the effect of additives on the resultant properties of honeycomb filter such as porosity, thermal expansion coefficient and mechanical strength were investigated. With increasing the organic matter up to 10 wt%, porosity was increased but compressive strength was decreased. With increasing the graphite content, however, both porosity and compressive strength were increased. The specimen with an optimum processing condition (C-17A30G, sintering at $1150^{circ}C$) was demonstrated 59% in porosity, 69 MPa in compressive strength, and $2.4{times}10^{-6}/^{circ}C;(25{sim}1000^{circ}C$) in thermal expansion coefficient, which physical properties are appropriate for the honeycomb filter applications.
Key words: Ceramic honeycomb filter, Cordierite, Fly ash, Physical properties
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