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Electrical conduction behaviour of Ba2+ and Mg2+ doped LaGaO3 perovskite oxide

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Abstract

The electrical properties of Ba2+ and Mg2+ doped LaGaO3 perovskite oxide were investigated. Doping with either Ba2+ or Mg2+ enhanced oxygen ion conductivity. The grain boundary resistance decreased with increasing Mg2+ concentration due to a reduced second phase concentration. The activation energy for oxygen ion conduction is much higher in a low-temperature region than in a high-temperature region.

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Authors and Affiliations

  1. Department of Ceramic Engineering, Yonsei University, Seoul, 120-749, Korea

    K.T. Lee & H.L. Lee

  2. Engineering Research Institute, Yonsei University, Seoul, 120-749, Korea

    S. Kim

  3. Korea Institute of Science & Technology, Seoul, 136-791, Korea

    G.D. Kim

Authors
  1. K.T. Lee
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  2. S. Kim
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  3. G.D. Kim
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  4. H.L. Lee
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Lee, K., Kim, S., Kim, G. et al. Electrical conduction behaviour of Ba2+ and Mg2+ doped LaGaO3 perovskite oxide. Journal of Applied Electrochemistry 31, 1243–1249 (2001). https://doi.org/10.1023/A:1012799409759

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  • DOI: https://doi.org/10.1023/A:1012799409759

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