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Journal of the Korean Ceramic Society 1979;16(2): 83. |
| Flux 첨가에 의한 Anorthite 합성에 관한 연구 |
| 안영필, 최석홍, 이광1 |
한양대학교 공대 요업과
1경남대 화공과 |
| The Synthesis of Anorthite by Addition of Flux |
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| ABSTRACT |
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The Anorthite is useful compound for some ceramic industries but it is difficult to produce Anorthite because of its high melting point (1553$^{circ}C$) and narrow firing range. On this study, glass frit was added to Anorthite batch composition to widen firing range and lower melting point. After mixing a glass frit $(Na_2O-CaO-6SiO_2)$ with Anorthite, it was melted and quenched. Ratio of Anorthite vs. glass frit was 9 : 1, 8.5 : 1.5, 8 : 2, 7.5 : 2.5, 7 : 3. In those batch composition added amount of $No_2O$ were between 1.3wt.% and 3.9wt.%. To find the thermal change of the quenched, D.T.A. was surveyed. The quenched were fired at various vitrification temperature and detected by X-Raydiffraction analysis. With addition of glass frit, firing range and vitrification temperature of Anorthite was 100~15$0^{circ}C$ and 1050~115$0^{circ}C$ respectively. Optimum amount of glass frit was 20wt.% for the upper mentioned. |
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