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Phase relation and thermoelectric property of Ca1-xBixMn1-yNiyO3 (0 ≤ x, y ≤ 0.1)

Published online by Cambridge University Press:  03 March 2016

Kenjiro Fujimoto ,
Minoru Gibu ,
Yuki Yamaguchi  and
Keishi Nishio
Kenjiro Fujimoto*
Affiliation:
Faculty of Science and Technology, Tokyo University of Science, Yamazaki 2641, Noda, Chiba, 278-8510 Japan Research Institute for Science and Technology, Tokyo University of Science, Yamazaki 2641, Noda, Chiba, 278-8510Japan
Minoru Gibu
Affiliation:
Faculty of Science and Technology, Tokyo University of Science, Yamazaki 2641, Noda, Chiba, 278-8510 Japan
Yuki Yamaguchi
Affiliation:
Faculty of Science and Technology, Tokyo University of Science, Yamazaki 2641, Noda, Chiba, 278-8510 Japan Research Institute for Science and Technology, Tokyo University of Science, Yamazaki 2641, Noda, Chiba, 278-8510Japan
Keishi Nishio
Affiliation:
Faculty of Industrial Science and Technology, Tokyo University of Science, Niijuku 6-3-1, Katsushika, Tokyo 125-8585, Japan Research Institute for Science and Technology, Tokyo University of Science, Yamazaki 2641, Noda, Chiba, 278-8510Japan
*
*(Email: fujimoto_kenjiro@rs.tus.ac.jp)
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Abstract

We established a Ca1-xBixMn1-yNiyO3 (0 ≤ x, y ≤ 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).

Keywords

combinatorial synthesiscold isostatic pressing (CIP)thermoelectric
Type
Articles
Information
MRS Advances , Volume 1 , Issue 26: Theory, Characterization, and Modeling , 2016 , pp. 1941 - 1946
Copyright
Copyright © Materials Research Society 2016 

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References

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