Electrical Characteristics of BaCe$_{0.9}$R$_{0.1}$O$_3$-$\delta$(R=La, Yb, Al) Based Perovskite Phase

BaCe$_{0.9}$R$_{0.1}$O$_3$-$\delta$(R=La, Yb, Al)계 페롭스카이트 상의 전기적 특성

  • Choi, Soon-Mok (Ceramic Department, Yonsei University) ;
  • Kim, Shin (Fine Ceramic Division, Institute of Ceramic Technology) ;
  • Lee, Hong-Lim (Ceramic Department, Yonsei University)
  • 최순목 (연세대학교 세라믹공학과) ;
  • 김신 (요업기술원 정밀요업과) ;
  • 이홍림 (연세대학교 세락믹공학과)
  • Published : 1999.01.01


Electrical characteristics of perovskite phases in the BaCe0.9R0.1O3-$\delta$(R=La, Yb and Al) system have been studied. Electrical conductivities of all specimens in air were higher than those in N2 atmosphers between 600 and 100$0^{\circ}C$. When temperature was elevated, the electrical conductivity difference between both atmospheres increased. Electrical conductivity of Yb3+ doped BaCeO3 specimen was higher than those of the La3+ and Al3+ doped specimens. The BaCe0.0Al0.1O3-$\delta$ showed higher proton transference number than both BaCe0.9Yb0.1O3-$\delta$ and BaCe0.9La0.1O3-$\delta$.


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