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  4. Correlation between microstructure and thermoelectric properties of AgPb18SbTe20 (LAST-18)
 
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2012
Conference Paper
Title

Correlation between microstructure and thermoelectric properties of AgPb18SbTe20 (LAST-18)

Abstract
This study reports microstructure investigations at AgPb mSbTe2+m (m = 18) (Lead-Antimony-Silver-Tellurium, LAST-18). Two different length scales were explored. The micrometer scale was evaluated by SEM to analyze volume fraction and number of secondary phases as well as the impact of processing parameters on the homogeneity of bulk samples. Site-specific liftout of TEM lamellae from thermoelectrically characterised samples was made to investigate the structure on the nanometer scale. High-resolution TEM and energy-filtered TEM were performed to reveal shape and size distribution of nanoprecipitates, respectively. An attempt is made to derive a structure-property relationship.
Author(s)
Perlt, S.
Höche, T.
Dadda, J.
Müller, E.
Bauer Pereira, P.
Hermann, R.P.
Sarahan, M.
Pippel, E.
Brydson, R.
Mainwork
9th European Conference on Thermoelectrics, ECT 2011  
Conference
European Conference on Thermoelectrics (ECT) 2011  
DOI
10.1063/1.4731524
Language
English
Fraunhofer-Institut für Werkstoffmechanik IWM  
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