Acrylamide Polymerization on Ceramic Powders(II) : Effect of MeOH on Si<TEX>$_3$</TEX>N<TEX>$_4$</TEX> Gelcasting

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J. Korean Ceram. Soc. > Volume 36(2); 1999 > Article

Journal of the Korean Ceramic Society 1999;36(2): 220.

세라믹분체 표면에서 아크릴아마이드 중합(제2보) : MeOH가 질화규소 겔캐스팅에 미치는 영향

류병환, 김은영¹, 이재도

한국화학연구소 화학소재단
¹충남대학교 공업화학과

Acrylamide Polymerization on Ceramic Powders(II) : Effect of MeOH on Si$_3$N$_4$ Gelcasting

ABSTRACT

For the process control of silicon nitride gelcasting, the effect of MeOH on the apparent gel induction time of slip, drying rate, and mechanical property of gelcast body were investigated. The apparent gel induction time showed maximum at 10~20 vol% MeOH and the drying rate of gelcast body increased in the ranged of 25~40%. The gelcast body was still machinable in the 40% of MeOH, though the mechanical property and relative density slightly decreased with increasing the amount of MeOH.

Key words: Gelcasting, Acrylamide, Silicon nitride, Slip, Dispersion, MeOH