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

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2009, 19(4), pp.190~195
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

Jeongwon Seok 1,  Jong Geon Choi 1

1동신대학교

Accredited

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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