Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Fabrication and Electrical Characteristics of SrZr$_{0.95}$M$_{0.05}$O$_3$-$\delta$ and BaZr$_{0.95}$O$_3$-$\delta$(M=Ga, Y)

SrZr$_{0.95}$M$_{0.05}$O$_3$-$\delta$ 및 BaZr$_{0.95}$O$_3$-$\delta$(M=Ga, Y) 의 제조와 전기적 특성

  • 편영미 (서울시립대학교 재료공학과) ;
  • 유광수 (서울시립대학교 재료공학과)
  • Published : 1999.07.01
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Abstract

Specimens of SrZr0.95Ga0.05O3-$\delta$, SrZr0.95Y0.05O3-$\delta$, BaZr0.95Ga0.05O3-$\delta$ and BaZr0.95Y0.05O3-$\delta$ were fabricated by a solid-state reaction method and subsequent sintering at 150$0^{\circ}C$ to 1$600^{\circ}C$ The microstructures and electrical characteristics of the specimens were studied. Only BaZr0.95Ga0.05O3-$\delta$ showed dense microstructure and had typical impedance spectra at various temperature. Its electrical conductivity by impedance analysis was 2.7$\times$10-3$\Omega$-1.cm-1 at 90$0^{\circ}C$ in air. The BaZr0.95Ga0.05O3-$\delta$ exhibited lower grain rsistance in wet atmosphere than in dry atmosphere and the reduction of resistance is due to the proton conduction.

Keywords

References

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