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Synthetic and characterization of Na-tetrasilicic fluorine mica by skull melting method  

Seok, Jeong-Won (Department of Gemological Engineering, Dongshin University)
Choi, Jong-Geon (Department of Gemological Engineering, Dongshin University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.19, no.4, 2009 , pp. 190-195 More about this Journal
Abstract
Na-tetrasilicic fluorine mica powders were synthesized by skull melting method. The staring materials having chemical composition of $Mg_3(OH)_2Si_4O_{10}:Na_2SiF_6:SiO_2=8.3:24.8:66.9$ 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.
Keywords
Na-tetrasilicic fluorine mica; Skull melting method; R.F. generator; Cold crucible; Specific electric resistance;
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Times Cited By KSCI : 1  (Citation Analysis)
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