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Erschienen in: Journal of Materials Science: Materials in Electronics 11/2013

01.11.2013

High temperature thermoelectric properties of the Ca3−xBxCo4O9 system

verfasst von: S. Demirel, S. Altin, M. A. Aksan

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 11/2013

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Abstract

The Ca3−xBxCo4O9 system (x = 0.0, 0.05, 0.75 and 1.0) has been prepared using the solid-state reaction technique. Structural, microstructural, transport properties (temperature dependence of resistivity, thermoelectric power) of the samples fabricated were investigated in details. The structural/microstructural investigations showed that complex and multiphase crystallographic structure was formed with the B-substitution. A decrease in the grain size was observed in the B-substituted samples. The resistivity increased with the substitution due to decrease in the grain size and weak-link among the grains. It is found that that the thermoelectric power is insensitive to the B-substitution. The highest power factor value was obtained in the x = 0.0 sample, however, it decreased in the B-substituted samples.

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Metadaten
Titel
High temperature thermoelectric properties of the Ca3−xBxCo4O9 system
verfasst von
S. Demirel
S. Altin
M. A. Aksan
Publikationsdatum
01.11.2013
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 11/2013
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-013-1417-6

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