Thermoelectric Properties of YBa2Cu3O7-x-Ca3Co4O9 Segmented Oxide Ceramic

被引：2

作者：

Wannasut, Pimpilai ^{[1
]}

Jaiban, Panupong ^{[2
]}

Keawprak, Nittaya ^{[3
]}

Watcharapasorn, Anucha ^{[1
,4
]}

机构：

[1] Chiang Mai Univ, Fac Sci, Dept Phys & Mat Sci, Chiang Mai 50200, Thailand

[2] King Mongkuts Univ Technol North Bangkok, Fac Sci Energy & Environm, Rayong Campus, Rayong 21120, Thailand

[3] Thailand Inst Sci & Technol Res, Pathum Thani 12120, Thailand

[4] Chiang Mai Univ, Fac Sci, Ctr Excellence Mat Sci & Technol, Mat Sci Res Ctr, Chiang Mai 50200, Thailand

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2019年 / 48卷 / 06期

关键词：

Thermoelectric properties; p-type material; segmented oxide ceramic; yttrium barium copper oxide (YBCO); calcium cobalt oxide (CCO); COBALTITE;

D O I：

10.1007/s11664-019-07105-w

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

YBa2Cu3O7-x-Ca3Co4O9 (YBCO-CCO) segmented ceramic was prepared successfully using a conventional solid state sintering technique. X-ray diffraction patterns and microstructural observation indicated phase purity and a compatibility of YBCO and CCO ceramics. The maximum values of electrical conductivity (sigma), Seebeck coefficient (S) and figure of merit (ZT) of YBCO-CCO segmented ceramic were 1.23x10(4) (-1)m(-1), 179 V/K and 0.35, respectively. Meanwhile, the thermal conductivity () values of these three compounds were not significantly different and possessed small temperature dependence. The enhancement in the ZT values of YBCO-CCO segmented ceramic at high temperature compared to the conventional CCO ceramic suggested that the former might be used as an alternative p-type material for thermoelectric devices.

引用

页码：3514 / 3518

页数：5

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