Thermoelectric properties of β-BaCu2S2

被引：0

作者：

Kurosaki, Ken ^{[1
]}

Uneda, Hironori ^{[1
]}

Muta, Hiroaki ^{[1
]}

Yamanaka, Shinsuke ^{[1
]}

机构：

[1] Department of Nuclear Engineering, Graduate School of Engineering, Osaka Univ., Yamadaoka 2-1, S.

来源：

Journal of Alloys and Compounds | 1600年 / 388卷 / 01期

关键词：

Barium compounds - Chemical reactions - Crystal structure - Electric resistance - Heating - Lattice constants - Polycrystalline materials - Sintering - Specific heat - Superlattices - Thermal conductivity - Thermal effects - Thermoelectricity - X ray diffraction analysis;

D O I：

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学科分类号：

摘要：

A polycrystalline sintered sample of β-BaCu2S2 with a natural superlattice structure was prepared by solid-state reactions. The thermal diffusivity and heat capacity were measured from room temperature to about 850 K. The thermal conductivity was evaluated from the thermal diffusivity and heat capacity. The value at room temperature is 0.86 W m-1 K-1. Using the data of the electrical resistivity and the Seebeck coefficient obtained in a previous study, the dimensionless figure of merit ZT of β-BaCu2S2 was evaluated. The ZT increases with increasing temperature and reaches 0.17 at 820 K. © 2004 Elsevier B.V. All rights reserved.

引用

页码：122 / 125