스컬용융법에 의한 Na사규소운모 합성 및 특성평가
Synthetic and characterization of Na-tetrasilicic fluorine mica by skull melting method
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초록
스컬용융법에 의해 Na사규소운모를 합성하였다. Mg3(OH)2Si4O10: Na2SiF6: SiO2= 8.3 : 24.8 : 66.9 mol% 비율로 혼합한 출발원료를 φ13 × H14 cm의 냉각도가니에 채우고 2.84 MHz 출력주파수의 고주파발진기를 이용하여 가열하였다. 원 료는 융액상태에서 1시간 유지하였으며 도가니 내에서 냉각시켰다. 운모의 비저항은 추정하였으며, 원주모양과 판상으로 합성할 수 있었다.
Abstract
Na-tetrasilicic fluorine mica powders were synthesized by skull melting method. The staring materials having chemical composition of Mg3(OH)2Si4O10 : Na2SiF6 : SiO2 = 8.3 : 24.8 : 66.9 mol% were charged into a cold crucible of 13 cm in diameter and 14cm in height and heated by R.F. generator at working frequency of 2.84 MHz. The materials were maintained for 1hr as a molten state and cooled down in the container. In this study, the specific electric resistance of mica was estimated and the columnar and plate shaped mica were synthesized.
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