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Optimization of Thermoelectric Properties of Ni-Cu based Alloy through Combinatorial Approach

Published online by Cambridge University Press:  01 February 2011

Atsushi Yamamoto ,
Haruhiko Obara  and
Kazuo Ueno
Atsushi Yamamoto
Affiliation:
a.yamamoto@aist.go.jp, National Institute of Advanced Industrial Science and Technology (AIST), Energy Technology Research Institute, Umezono 1-1-1, Tsukuba, 3058568, Japan, +81-2986115776, +81-2986115340
Haruhiko Obara
Affiliation:
h.obara@aist.go.jp, National Institute of Advanced Industrial Science and Technology (AIST), Energy Technology Research Institute, Umezono 1-1-1, Tsukuba, 3058568, Japan
Kazuo Ueno
Affiliation:
ueno.kazuo@aist.go.jp, National Institute of Advanced Industrial Science and Technology (AIST), Energy Technology Research Institute, Umezono 1-1-1, Tsukuba, 3058568, Japan
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Abstract

The thermoelectric properties of Ni1-xCux (0<x<1) alloy are measured from 323K to 950K. The sample with optimized composition, Ni70Cu30 is found to possess large power factor value of 0.012 Wm−1K−2 at around 950K. Estimated figure of merit value ZT is 0.21 for Ni50Cu50 and 0.18 for Ni70Cu30 at the same temperature. A novel attempt of high-throughput parallel synthesis using multiple-wells is carried out to test the feasibility of combinatorial approach in this material system. The Seebeck coefficient is visualized over the multiple-wells combinatorial library and the other Ni-Cu composition-spread, and it is proved that further enhancement of throughput could be possible by conducting systematic experiments based on the combinatorial approaches performed in this study.

Keywords

thermoelectricityalloyelectron-phonon interactions
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1044: Symposium U – Thermoelectric Power Generation , 2007 , 1044-U06-18
Copyright
Copyright © Materials Research Society 2008

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References

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