A dielectric study of $BaTiO_3$ glass ceramics

$BaTiO_3$ 결정화 유리의 유전특성에 관한 연구

  • Kim, Hyung-Sik (Korea Electrotechnology Research Institute Insulation Materials Lab) ;
  • Kang, Uk (Korea Electrotechnology Research Institute Insulation Materials Lab) ;
  • Park, Jong-Mun (Korea Electrotechnology Research Institute Insulation Materials Lab)
  • 김형식 (한국전기연구소 절연재료연구실) ;
  • 강욱 (한국전기연구소 절연재료연구실) ;
  • 박종문 (한국전기연구소 절연재료연구실)
  • Published : 1988.10.01

Abstract

The dielectric properties of glass ceramics with BaTiO$_3$ crystallites are described. In this study measurements were made over the frequency range 1kHz-10MHz and temperature range $25^{\circ}C$-15$0^{\circ}C$. There are several minor constituents in the glass which needed to obtain the desired properties. The fluorine ion substitutes for oxygen in glass-crystallized BaTiO$_3$. And additions of Mg ion is used to shift the Curie temperature. We show the addition of Mg ion lowers the Curie point to about 323。K.

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