Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Phase Formation and Oxygen Ion Conduction of $La(Ba)Ga(Mg)O_3_\delta$ Perovskite Oxide System

$La(Ba)Ga(Mg)O_3_\delta$계 Perovskite 산화물의 생성상 및 산소이온전도

  • Lee, Ki-Tae (Department of Ceramic Engineering, Yonsei University) ;
  • Kim, Shin (Engineering Research Institute, Yonsei University) ;
  • Lee, Hong-Lim (Department of Ceramic Engineering, Yonsei University)
  • 이기태 (연세대학교 세라믹공학과) ;
  • 김신 (연세대학교 산업기술연구소) ;
  • 이홍림 (연세대학교 세라믹공학과)
  • Published : 1999.10.01
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Abstract

Phase formation and oxygen ion conduction of La(Ba)Ga(Mg)O3-$\delta$ system was studied, BaLaGa3O7 and BaLaGaO4 formed as a secondary phase above the solubility limit of Ba2+ in La3+ sites. The oxygen ionic conductivity of La(Ba)Ga(Mg)O3-$\delta$ was 0.1 S/cm 80$0^{\circ}C$ The activation energy of the oxygen ion conduction was dependent on temperature. This value was higher at low temperature than at high temperature.

Keywords

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