Improved Thermoelectric Performances of Oxide-Containing FeSi<SUB>2</SUB>

DOI Web Site Web Site 1 Citations 20 References

Bibliographic Information

Other Title
  • Improved thermoelectric performances of oxide-containing FeSi2

Search this article

Abstract

Because of its chemical stability and low cost, iron silicide is a promising thermoelectric material for use at high temperatures. Its performance, however, is poor compared with that of BiTe, PbTe, or SiGe, which are popular thermoelectric materials. We produced n-type FeSi2 samples containing various oxides, which showed a good thermoelectric performance. We attempted to unify the parameters attributing to thermoelectric performance, and the electrical resistivity decreased while an adequate Seebeck coefficient was retained and the thermal conductivity was reduced. This results in a greater value of the Seebeck coefficient, particularly on addition of Sm2O3; the resulting figure of merit ZT was 0.56 at 868 K. Addition of Er2O3 gave a ZT value of 0.54 at 877 K, and the material showed a lower thermal conductivity of 2–2.5 W/m·K.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 52 (8), 1526-1530, 2011

    The Japan Institute of Metals and Materials

Citations (1)*help

See more

References(20)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top