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Phase relation and thermoelectric property of Ca1-xBixMn1-yNiyO3 (0 ≤ xy ≤ 0.1)

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Abstract

We established a Ca1-xBixMn1-yNiyO3 (0 ≤ xy ≤ 0.1) powder library using a combinatorial system based on the electrostatic spray deposition method. Single phase perovskite-type structures were identified in all of the powders. To measure electrical conductivity, the powder library was subjected to high-pressure (200 MPa) and heat-treated at 950°C for 1 hour in an oxygen atmosphere. As a representative example, the electrical conductivity of 5%-Bi-substituted CaMnO3-δ showed a higher value (63 S·cm-1) than an unsubstituted powder (13 S·cm-1). The improved electrical conductivity, on the other hand, was still very far from the ideal result (167 S·cm-1).

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Authors and Affiliations

  1. Faculty of Science and Technology, Tokyo University of Science, Yamazaki 2641, Noda, 278-8510, Chiba, Japan

    Kenjiro Fujimoto, Minoru Gibu & Yuki Yamaguchi

  2. Faculty of Industrial Science and Technology, Tokyo University of Science, Niijuku 6-3-1, Katsushika, 125-8585, Tokyo, Japan

    Keishi Nishio

  3. Research Institute for Science and Technology, Tokyo University of Science, Yamazaki 2641, Noda, 278-8510, Chiba, Japan

    Kenjiro Fujimoto, Yuki Yamaguchi & Keishi Nishio

Authors
  1. Kenjiro Fujimoto
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  2. Minoru Gibu
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  3. Yuki Yamaguchi
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  4. Keishi Nishio
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Fujimoto, K., Gibu, M., Yamaguchi, Y. et al. Phase relation and thermoelectric property of Ca1-xBixMn1-yNiyO3 (0 ≤ xy ≤ 0.1). MRS Advances 1, 1941–1946 (2016). https://doi.org/10.1557/adv.2016.173

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