High temperature thermoelectric properties of La1-xSrxFeO3 (0<X<1)

被引：10

作者：

Iijima, M ^{[1
]}

Murayama, N ^{[1
]}

机构：

[1] Noritake Co Ltd, Aichi 4700293, Japan

来源：

XVII INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS ICT 98 | 1998年

关键词：

D O I：

10.1109/ICT.1998.740450

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Thermoelectric properties of some oxide materials have been investigated for developing thermoelectric power generation devices which can be used at high temperatures in air. Most of them are n-type semiconductors. The perovskite-type oxides, La1-xSrxFeO3 (0<X<1) are known as p-type semiconductors. We measured the thermal conductivity (lambda) of these oxides as well as the Seebeck coefficient (S) and the electrical conductivity (sigma) in a temperature range of 473-1273 K in air, and evaluated the figure of merit. The Seebeck coefficient was positive, and minimum value was measured around 700 K. The electrical conductivity increased with increasing temperature. The thermal conductivity slightly decreased with increasing temperature. The values of S, sigma and lambda of the sample with x=0.05 were 228 mu VK-1, 21 S cm(-1) and 1.85 W m(-1)K(-1), respectively, at 1273 K. The figure of merit was 0.59 x 10(-4) K-1.

引用

页码：598 / 601

页数：4

High temperature thermoelectric properties of La1-xSrxFeO3 (0&lt;X&lt;1)

High temperature thermoelectric properties of La1-xSrxFeO3 (0<X<1)