Thermoelectric properties of spark-plasma-sintered Na1+xCo2O4 ceramics

被引：12

作者：

Matsubara, I ^{[1
]}

Zhou, YQ

Takeuchi, T

Funahashi, R

Shikano, M

Murayama, N

Shin, W

Izu, N

机构：

[1] Natl Inst Adv Ind Sci & Technol, Moriyama Ku, Nagoya, Aichi 4638560, Japan

[2] Natl Inst Adv Ind Sci & Technol, Ikeda, Osaka 5638577, Japan

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2003年 / 111卷 / 04期

关键词：

thermoelectric; oxide; spark plasma sintering; thermoelectric power; resistivity; thermal conductivity;

D O I：

10.2109/jcersj.111.238

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Na1-xCo2O4 ceramics were prepared by spark plasma sintering (SPS) and their thermoelectric properties were investigated from room temperature to 700degreesC in air. The SPS process with cover pellets technique is effective in obtaining highly densified single phase Na1-xCo2O4 ceramics, typically 98% of the theoretical X-ray density, with lower resistivity. The power factor and figure of merit of the SPS treated NaCo2O4 ceramics attain 8.4 x 10(-4) W.m(-1).K-2 and ZT = 0.3 at 700degreesC, respectively.

引用

页码：238 / 241

页数：4

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