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J. Korean Ceram. Soc. > Volume 27(6); 1990 > Article
Journal of the Korean Ceramic Society 1990;27(6): 777.
금속 Alkoxide로부터 Cordierite 분말의 합성 및 소결에 관한 연구 (II)
한문희, 박금철1
한국동력자원연구소
1한양대학교 공과대학 무기재료공학과
Synthesis and Sintering of Cordierite from Metla Alkoxides (II) Sintering
ABSTRACT
The sintering behavior of cordierite powders synthesized using a sol-gel method of metal alkoxides Si(OC2H5)4, Al(OC3H71)3 and Mg(OC2H5)2 was investigated. Densification of the powder compacts fabricated using the precursor powders calcined at 900$^{circ}C$ for 2hrs was improved over the sintering temperature range of 800 to 980$^{circ}C$. The powder compacts, fabricated using the calcined precursor powders and sintered at 1300$^{circ}C$ for 2hrs, showed relative density of 97-98%, 3-point bending strength of 120-140Mpa, KIC of 2.4-3.7 Mpam1/2, and thermal expansion coefficient of 1.48-1.66${times}$10-6/$^{circ}C$.
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