Electrical & Electronic Materials (E2M - 전기 전자와 첨단 소재)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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The effect of $Ba^{+2}$ shortage on microwave dielectric characteristics of $Ba_{1-x}$ $(Z $n_{1/3}$T $a_{2/3}$ $O_3$ ceramics

B $a^{+2}$의 결핍에 따른 Ba(Z $n_{1/3}$T $a_{2/3}$ $O_3$ 세라믹스의 고주파 유전특성에 관한 연구

  • 이문길 (연세대학교 공대 전기공학과) ;
  • 이두희 (연세대학교 공대 전기공학과) ;
  • 윤현상 (연세대학교 공대 전기공학과) ;
  • 김준한 (연세대학교 공대 전기공학과) ;
  • 홍재일 (대유공전 전기공학과) ;
  • 박창엽 (연세대학교 공대 전기공학과)
  • Published : 1994.09.01
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Abstract

Dielectric and structural properties of $Ba_{1-x}$(Z $n_{1}$3/T $a_{2}$3/) $O_{3}$+1 mol% Mn $O_{2}$ (x=0, 0.01, 0.02, 0.03, 0.04) ceramics was investigated at microwave frequencies. With $Ba_{+2}$ shortage, the sinterability and the unloaded Q( $Q_{u}$) were much improved, and the ordering in B site and the lattice distortion was greatly enhanced and the structure approached the completely ordered structure. $Q_{u}$ was strongly correlated with these factors such as ordering ratio, lattice distortion and sinterability, and had the maximum value of 7500 at x=0.01. The dielectric constant was near 30 and the temperature coefficient of the resonant frequency was 2 ppm/.deg. C at x=0.01.1.1.1.

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