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Anisotropy and inhomogeneity measurement of the transport properties of spark plasma sintered thermoelectric materials

Published online by Cambridge University Press:  03 January 2013

A. Jacquot ,
M. Rull ,
A. Moure ,
J.F. Fernandez-Lozano ,
M. Martin-Gonzalez ,
M. Saleemi ,
M.S. Toprak ,
M. Muhammed  and
M. Jaegle
A. Jacquot
Affiliation:
Fraunhofer-IPM, Thermoelectric Systems department, Heidenhofstraße 8, 79110 Freiburg, Germany.
M. Rull
Affiliation:
Instituto de Microelectrónica de Madrid, C/ Isaac Newton 8. Tres Cantos, 28760 Madrid, Spain.
A. Moure
Affiliation:
Instituto de Ceramica y Vidrio, C/ Kelsen, 5 Madrid 28049, Spain.
J.F. Fernandez-Lozano
Affiliation:
Instituto de Ceramica y Vidrio, C/ Kelsen, 5 Madrid 28049, Spain.
M. Martin-Gonzalez
Affiliation:
Instituto de Microelectrónica de Madrid, C/ Isaac Newton 8. Tres Cantos, 28760 Madrid, Spain.
M. Saleemi
Affiliation:
Functi Instituto de Ceramica y Vidrio onal Materials Division, KTH Royal Institute of Technology, Kista-Stockholm, Sweden.
M.S. Toprak
Affiliation:
Functi Instituto de Ceramica y Vidrio onal Materials Division, KTH Royal Institute of Technology, Kista-Stockholm, Sweden.
M. Muhammed
Affiliation:
Functi Instituto de Ceramica y Vidrio onal Materials Division, KTH Royal Institute of Technology, Kista-Stockholm, Sweden.
M. Jaegle
Affiliation:
Fraunhofer-IPM, Thermoelectric Systems department, Heidenhofstraße 8, 79110 Freiburg, Germany.
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Abstract

We report on the development and capabilities of two new measurement systems developed at Fraunhofer-IPM. The first measurement system is based on an extension of the Van der Pauw method and is suitable for cube-shaped samples. A mapping of the electrical conductivity tensor of a Skutterudite-SPS samples produced at the Instituto de Microelectrónica de Madrid is presented. The second measurement system is a ZTmeter also developed at the Fraunhofer-IPM. It enables the simultaneous measurement of the electrical conductivity, Seebeck coefficient and thermal conductivity up to 900 K of cubes at least 5x5x5 mm3 in size. The capacity of this measurement system for measuring the anisotropy of the transport properties of a (Bi,Sb)2Te3SPS sample produced by KTH is demonstrated by simply rotating the samples.

Keywords

thermoelectricelectrical propertiessintering
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1490: Symposium B – Thermoelectric Materials Research and Device Development for Power Conversion and Refrigeration , 2013 , pp. 89 - 95
Copyright
Copyright © Materials Research Society 2012 

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References

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