Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Dielectric Relaxation Properties of 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 Ceramics with CuO Addition

CuO 첨가에 따른 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 세라믹스의 유전 이완 특성

  • Bae, Seon Gi (Department of Electrical Engineering, Incheon National University) ;
  • Shin, Hyea-Kyoung (Department of Electrical Engineering, Incheon National University) ;
  • Lee, Suk-Jin (Department of Digital Information Communication, Ansan University) ;
  • Im, In-Ho (Department of Electrical Engineering, Shinansan University)
  • 배선기 (인천대학교 공과대학 전기공학과) ;
  • 신혜경 (인천대학교 공과대학 전기공학과) ;
  • 이석진 (안산대학교 디지털정보통신과) ;
  • 임인호 (신안산대학교 전기과)
  • Received : 2015.01.05
  • Accepted : 2015.01.16
  • Published : 2015.02.01
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Abstract

We investigated the dielectric relaxation properties $0.5Ba(Zr_{0.2}Ti_{0.8})O_3-0.5(Ba_{0.7}Ca_{0.3})TiO_3$ ceramics with CuO addition. With increasing CuO addition, the lattice parameter was increased by substitution of small amount $Cu^{2+}$ ion in B-site of $0.5Ba(Zr_{0.2}Ti_{0.8})O_3-0.5(Ba_{0.7}Ca_{0.3})TiO_3$ ceramics. Also the grain size and the maximum dielectric constant of $0.5Ba(Zr_{0.2}Ti_{0.8})O_3-0.5(Ba_{0.7}Ca_{0.3})TiO_3$ ceramics was decreased with increasing amounts of CuO addition. Moreover, the diffused phase transition properties (${\gamma}$) of $0.5Ba(Zr_{0.2}Ti_{0.8})O_3-0.5(Ba_{0.7}Ca_{0.3})TiO_3$ ceramics was increased by compositional fluctuation with increasing of CuO amount, changed from 1.45 at 1 wt% CuO addition to 1.94 at 7 wt% CuO addition.

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References

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