期刊
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
卷 118, 期 1383, 页码 1098-1101出版社
CERAMIC SOC JAPAN-NIPPON SERAMIKKUSU KYOKAI
DOI: 10.2109/jcersj2.118.1098
关键词
Ceramics; Oxide materials; Thermoelectric; Strontium titanate
资金
- Japan Science and Technology Agency
- International Cooperation MOST-JST Program [2010DFA61410]
- Western Light Project of Chinese Academy of Sciences [LHXZ200902]
- National Natural Science Foundation of China [50802013]
- Japan Society for the Promotion of Science
Nb-doped SrTiO3 thermoelectric ceramic composites with potassium titanate (KTO) nanowires addition were fabricated by the pressure-less sintering method in an Ar atmosphere. KTO addition significantly reduced the thermal conductivity and enhanced the electrical conductivity. Meanwhile, the Seebeck coefficient was almost independent of KTO addition, thus, enhancing the dimensionless thermoelectric figure of merit, ZT. The sample with 3 wt % KTO addition gave the maximum ZT of 0.34 at 900 K. The reason for the enhanced thermoelectric properties by KTO addition was also investigated. (C)2010 The Ceramic Society of Japan. All rights reserved.
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