Preparation of In2O3-Sr2RuErO6 Composite Ceramics by the Spark Plasma Sintering and Their Thermoelectric Performance

材料科学技术（英文）, 2011, 27(12): 1165-1168.

^1, , ^2, , ^3, , ^4, , ^5,

1.State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

2.State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

3.State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

4.School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

5.State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

基金项目: the National Basic Research Program of China(2007CB607504) also supported by the National High Technology Research and Development Program of China(2009AA03Z216)

Preparation of In2O3-Sr2RuErO6 Composite Ceramics by the Spark Plasma Sintering and Their Thermoelectric Performance

Bo Cheng ^1, , Yuanhua Lin ^2, , Jinle Lan ^3, , Yong Liu ^4, , Cewen Nan ^5,

1.State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

2.State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

3.State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

4.School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

5.State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

Keywords： Indium oxide

In1.94Zn0.03Ge0.03O3 and Sr2RuErO6 composite ceramics have been prepared by the spark plasma sintering (SPS) technique. Microstructure studies show that the Sr2RuErO6 phases are randomly dispersed in the ln1.94Zn0.03Ge0.03O3 matrix. The results show that the Seebeck coefficient increases with increasing the amount of Sr2RuErO6, while the thermal conductivity of the composite samples is lower than that of the In1.94Zn0.03Ge0.03O3 ceramic. The thermal conductivity of the 7 vol.% Sr2RuErO6 sample can decrease to 2.15 W·m-1·K-1 at 973 K, and the evaluated maximum ZT value is 0.23 for 3 vol.% Sr2RuErO6 samples at 973 K, which makes them promising materials for the thermoelectric devices.

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Preparation of In2O3-Sr2RuErO6 Composite Ceramics by the Spark Plasma Sintering and Their Thermoelectric Performance

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