Preparation of Porous Glass by the Sintering

,; ,; ,; ,

J. Korean Ceram. Soc. > Volume 31(9); 1994 > Article

Journal of the Korean Ceramic Society 1994;31(9): 957.

소결법에 의한 다공질유리의 제조

박용완, 이준영

한양대학교 무기재료공학과

Preparation of Porous Glass by the Sintering

ABSTRACT

Manufacturing process of porous glass by the filler method was studied. Commercial soda-lime-silicate glass powder was mixed with inorganic salt as the filler such as KCl, K2SO4, Na2SO4. Sintering shrinkages of mixed powders with the variation of sintering temperature were compared, and the effects of the fillers to shrinkages of mixed powder were increased in the order of Na2SO4${mu}{textrm}{m}$ of pore diameter were manufactured when the filler sizes 100~200 ${mu}{textrm}{m}$. The open pore volume of porous glass is determined by the quantity of filler and porous glasses having open pore volume between 30 and 70 vol% are available. Available sintering temperature range for preparation of porous glass is from the softening temperature of the glass powder to eutectic melting temperature of DTA curve of mixed powder.