Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Effects of $B_2O_3$ Addition on the Sintering Behavior and the Microwave Dielectric Properties of $(Mg_{0.93}Ca_{0.07})TiO_3$ Ceramics

$(Mg_{0.93}Ca_{0.07})TiO_3$ 세라믹스의 소결 및 마이크로파 유전특성에 미치는 $B_2O_3$의 영향

  • 이득우 (한양대학교 무기재료공학과) ;
  • 박재환 (한국과학기술연구원 복합기능세라믹스연구센터) ;
  • 김인태 (한국과학기술연구원 복합기능세라믹스연구센터) ;
  • 박재관 (한국과학기술연구원 복합기능세라믹스연구센터) ;
  • 김윤호 (한국과학기술연구원 복합기능세라믹스연구센터) ;
  • 최덕균 (한양대학교 무기재료공학과)
  • Published : 1998.03.01
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Abstract

The effects of B2O3 addition on the sintering behavior and th microwave dielectric properties of $(Mg_{0.93}Ca_{0.07})TiO_3$ ceramics were investigated. By addition of $B_2O_3$, increases the density of the ceramics increases and grain growth enhances, It was densified to over 94% of $(Mg_{0.93}Ca_{0.07})TiO_3$ theoretical density by the addition of 0.15-1.0wt% B2O3 and stable microwave dielectric properties observed by the addition of 0.2-0.4wt% $B_2O_3.\;(Mg_{0.93}Ca_{0.07})TiO_3$ ceramics sintered at $1200^{\circ}C$ exhibits maximum dielectric constants of 24-25 quality factor($Q{\times}f$) of more than 70000 and temperature coefficient of resonant frequency of $0\;ppm/^{\circ}C$ by adding of 0.15-0.4wt% $B_2O_3$.

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References

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