Structure and thermoelectric properties of InxBayCo4Sb12 samples prepared by HPHT

JOURNAL OF ALLOYS AND COMPOUNDS

卷:712

Article

Deng, L.¹  Ni, J.²  Wang, L. B.¹  Jia, X. P.³  Qin, J. M.¹  Liu, B. W.³ 

[1] Changchun Univ Sci & Technol, Dept Mat Sci & Engn, Changchun 130022, Peoples R China

[2] Volkswagen Automot Co Ltd, FAW, Changchun 130011, Peoples R China

[3] Jinlin Univ, Natl Lab Superhard Mat, Changchun 130012, Peoples R China

关键词: Skutterudite;    Thermoelectric properties;    HPHT;    Seebeck coefficient;   

DOI  :  10.1016/j.jallcom.2017.04.130

来源: Elsevier

【 摘 要 】

Double-filled CoSb3 is one kind of the most promising thermoelectric materials, the choice and concentration of filled atoms are the key for the high figure of merit values (ZTs). We report the transport properties of In and Ba filled skutterudite prepared by a high-pressure synthesis approach, the processing time was sharply reduced from a few days to half an hour. The main parameters, including Seebeck coefficient, electrical resistivity and thermal conductivity, were all investigated in the temperature range of 323-723 K. In0.4Ba0.1Co4Sb12 showed a relatively good ZT value attributed to both the enhanced power factor and the low thermal conductivity. And the multiple microstructures, defects and strains were also revealed by high-resolution transmission electron microscopy (HRTEM) images. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

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