Thermoelectric Properties of CuAl1−xMxO2 (M=Zn, Ca)

Takuya Kurotori; Sunao Sugihara

doi:10.2320/matertrans.46.1462

MATERIALS TRANSACTIONS

Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678

Thermoelectric Properties of CuAl_1−xM_xO₂ (M=Zn, Ca)

Takuya Kurotori, Sunao Sugihara

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Keywords: delafossite, calcium, zinc, copper alminate, seebeck coefficient, electrical conductivity, thermal conductivity, figure of merit

JOURNAL FREE ACCESS

2005 Volume 46 Issue 7 Pages 1462-1465

DOI https://doi.org/10.2320/matertrans.46.1462

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Abstract

Substitution was performed with Ca²⁺ and Zn²⁺ in the Al³⁺ site of CuAlO₂. We investigated the influence of substitution on thermoelectric properties. Power factors were the highest near 850 K for the samples of CuAl_0.999Zn_0.001O₂ (6.8×10⁻⁵ Wm⁻¹K⁻²), CuAl_0.999Ca_0.001O₂ (7.4×10⁻⁵ Wm⁻¹K⁻²), CuAlO₂ (6.6×10⁻⁵ Wm⁻¹K⁻²).

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