Analysis of the Microstructure of Mg2Si Thermoelectric Devices |
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| Authors: | Shigeyuki Nakamura Yoshihisa Mori Ken’ichi Takarabe |
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| Affiliation: | 1. Tsuyama National College of Technology, 624-1 Numa, Tsuyama, 708-8509, Japan
2. Okayama University of Science, 1-1 Ridaicho, Okayama, 700-0005, Japan
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| Abstract: | High-performance Mg2Si thermoelectric devices have been obtained by spark plasma sintering of high-purity, pre-synthesized, all-molten Mg2Si powder. We studied the effects of source powder particle size on thermoelectric performance. To improve the performance, further investigation of the microstructure of the devices is needed. In this work we studied the microstructure of grain boundaries and interfaces between electrodes and Mg2Si sintered bodies to increase understanding of Mg2Si thermoelectric devices. |
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