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J. Korean Ceram. Soc. > Volume 36(1); 1999 > Article
Journal of the Korean Ceramic Society 1999;36(1): 69.
BaCe$_{0.9}$R$_{0.1}$O$_3$-$delta$(R=La, Yb, Al)계 페롭스카이트 상의 전기적 특성
최순목, 김신1, 이홍림2
연세대학교 세라믹공학과
1요업기술원 정밀요업과
2연세대학교 세락믹공학과
Electrical Characteristics of BaCe$_{0.9}$R$_{0.1}$O$_3$-$delta$(R=La, Yb, Al) Based Perovskite Phase
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-$delta$.
Key words: Perovskite structure, BaCe$_{0.9}$R$_{0.1}$O$_3$-$\delta$(R=La, Yb, Al) system, Electrical conductivity, Proton conductivity
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