Joining of 8 mol% YSZ Solid Electrolyte and Perovskite LaMnO3

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J. Korean Ceram. Soc. > Volume 29(5); 1992 > Article

Journal of the Korean Ceramic Society 1992;29(5): 377.

8 mol% YSZ 고체전해질과 페로프스카이트 $LaMnO_3$와의 접합

김명철, 박순자¹

군산대학교 공과대학 재료공학과
¹서울대학교 공과대학 무기재료공학과

Joining of 8 mol% YSZ Solid Electrolyte and Perovskite LaMnO3

ABSTRACT

For the development of solid oxide fuel cell the joined interface formation between perovskite oxygen electrode and YSZ solid electrolyte is emphasized in the aspect of reducing the undisirable overpotential. The diffusion couple of LaMnO3 and YSZ was prepared by hot pressing at 130$0^{circ}C$ in the flow of oxygen gas. The high temperature solid state reaction mechanism between LaMnO3 and YSZ is discussed on the basis of the cation composition profile through EDX analysis. The cation components in perovskite compound diffuse considerably into YSZ, while cations of YSZ diffuse little into perovskite.