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J. Korean Ceram. Soc. > Volume 18(3); 1981 > Article
Journal of the Korean Ceramic Society 1981;18(3): 187.
$TiO_2$$ZrO_2$의 첨가에 따르는 $Li_2O-Al_2O_3-SiO_2$ 계 유리의 결정화에 관한 연구
박용완, 전문덕
한양대학교 공과대학 무기재료공학과
Studied on the Crystallization of $Li_2O-Al_2O_3-SiO_2$ Glass by Adding $TiO_2$ and $ZrO_2$
The effect of additions, $TiO_2$ and $ZrO_2$ as nucleant on the base glass which composition was determined to 0.97 $Li_2O-Al_2O_3-SiO_2$ has been investigated by means of D.T.A., X-ray diffraction and dilatation. $TiO_2$ and $ZrO_2$ as nucleant were added 0.06mole, in which ratios of $TiO_2$/$ZrO_2$ were varied 1/0, 2/1, 1/1, 1/2 and 0/1. The crystalline phases were appeared to $beta$-spodumene as principal, $beta$-eucryptite and $ZrO_2$ as secondary, regardless of nucleant variations. The crystallinity of the crystallized glass added $TiO_2$, $ZrO_2$ mixture as nucleant was higher than that of the glass added $TiO_2$ or $ZrO_2$ only. The crystallinity of the glass added $TiO_2$/$ZrO_2$ =1/1 was highest. Increasing the addition of $ZrO_2$, it has been observed that the crystal growing temperature became higher.
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