Impedance Properties of LSMC-YSZ Composite Cathode

,; ,; ,; ,; ,; ,; ,; ,; ,; ,

J. Korean Ceram. Soc. > Volume 35(9); 1998 > Article

Journal of the Korean Ceramic Society 1998;35(9): 917.

LSMC-YSZ Composite 양극의 임피던스 특성

김재동, 김구대¹, 문지웅, 김창은, 이동아¹

연세대학교 세라믹공학과
¹한국과학기술연구원 세라믹공정센터

Impedance Properties of LSMC-YSZ Composite Cathode

ABSTRACT

The polarization characteristics of the cathodes were discussed which were composed YSZ and ${(La_{0.75 }Sr_{0.25 })}_{0.95}Mn_{0.8 }Co_{0.2}O_3$ The three-phase-boundary length increased with the addition of YSN resulting in the minimum po-larization resistance at 60(LSMC) : 40(YSZ) wt% When LSMC-YSZ compoiste cathodes was sintered at $1200^{circ}C$ minimum polarization resistance was observed and the capacitace increased with increasing sintering tem-perature.

Key words: LSMC-YSZ composite cathode, ${(La_{0.75}Sr_{0.25 })}_{0.95}Mn_{0.8}Co_{0.2}O_3$, Polarization, Three phase boundary