The Influence of RuO sub(2) Addition on the Thermoelectric Properties of BiSbTe Alloys

P-type BiSbTe/RuO sub(2) composite was fabricated using a combined process of melting and spark plasma sintering. The XRD patterns showed that RuO sub(2) reacted with the matrix for the RuO sub(2) content of 1.0 wt% and 4.0 wt% samples. The measured thermoelectric properties showed that the highest...

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Bibliographic Details
Published in:Key engineering materials 2012-06, Vol.512-515, p.1651-1654
Main Authors: Xiao, Yu Kun, Li, Zhi Xiang, Jiang, Jun, Yang, Sheng Hui, Zhang, Ting, Zhai, Yong Biao, Xu, Gao Jie
Format: Article
Language:English
Subjects:
Alloys
Electrical resistivity
Lattices
Melting
Resistivity
Ruthenium oxide
Thermal conductivity
Thermoelectricity
Online Access:Get full text
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Summary:P-type BiSbTe/RuO sub(2) composite was fabricated using a combined process of melting and spark plasma sintering. The XRD patterns showed that RuO sub(2) reacted with the matrix for the RuO sub(2) content of 1.0 wt% and 4.0 wt% samples. The measured thermoelectric properties showed that the highest electrical conductivity was obtained for the sample with 2.0 wt% RuO sub(2). The power factor ( alpha super(2)[sigma]/ Kappa ) decreased with the increase of RuO sub(2) below 450 K. The lattice thermal conductivity was lower than that of BiSbTe over the whole temperature range for BiSbTe/2.0 wt% RuO sub(2).
ISSN:1013-9826
DOI:10.4028/www.scientific.net/KEM.512-515.1651