Thermoelectric properties of Ti- and Sn-doped α-Fe2O3

被引：40

作者：

Muta, H ^{[1
]}

Kurosaki, K ^{[1
]}

Uno, M ^{[1
]}

Yamanaka, S ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Nucl Engn, Osaka 5650871, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2002年 / 335卷 / 1-2期

关键词：

oxide materials; electrical transport; heat conduction; thermoelectric;

D O I：

10.1016/S0925-8388(01)01804-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electrical conductivities, Seebeck coefficients and thermal conductivities of (Fe1-xMx)(2)O-3 (M=Ti, Sn; x=0-0.03) are measured in the temperature range from room temperature to 973 K. Ti- and Sn-doping increases the electrical conductivities and decreases the Seebeck coefficients. The thermal conductivities decrease with increasing temperature, indicating phonon contribution, and they decrease by doping. The figure of merit of (Fe0.97Ti0.03)(2)O-3 reaches 4.28X10(-5) K-1 at 973 K. and the power factor (=S(2)sigma) is 1.5X10(-4) W/mK(2), which is almost equal to that of LixNi1-xO. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：200 / 202

页数：3

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