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Influence of Phase Composition on the Thermoelectric Properties of Nanostructured Skutterudite-Ceramic Composites

Stiewe, Christian and He, Zeming and Li, Shanghua and Platzek, Dieter and Toprak, Muhammet and Müller, Eckhard and Muhammed, Mamoun (2006) Influence of Phase Composition on the Thermoelectric Properties of Nanostructured Skutterudite-Ceramic Composites. In: Proceedings of the 25th International Conference on Thermoelectrics, pp. 678-681. IEEE, Piscataway. 25th International Conference on Thermoelectrics, 6.-10. August 2006, Vienna, Austria. ISBN 1-4244-0811-3 ISSN 1094-2734

Full text not available from this repository.

Abstract

Nanostructuring of unfilled CoSb3 Skutterudites has been successful in reducing the thermal conductivity of these materials. First measurements on a mixture of the Skutterudite and an inert ceramic with particle sizes in the nanometer range have shown promising results for a further reduced thermal conductivity by decorating the grain boundaries of the thermoelectric material. A strong influence of additional phases like CoSb2 and pure Sb in the samples has been encountered, too. Therefore in the present work a more detailed investigation of the effect of phase purity and grain size by an intential variation of the phase composition is presented. The impact of a variation in the amount of the ceramics addition and of the phase composition on the thermoelectric properties (κ, σ, S) of pure and doped CoSb3, respectively, are studied and the results are discussed with respect to an enhancement of the thermoelectric figure of merit.

Item URL in elib:https://elib.dlr.de/45933/
Document Type:Conference or Workshop Item (Paper, Poster)
Title:Influence of Phase Composition on the Thermoelectric Properties of Nanostructured Skutterudite-Ceramic Composites
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Stiewe, ChristianUNSPECIFIEDUNSPECIFIED
He, ZemingUNSPECIFIEDUNSPECIFIED
Li, ShanghuaKTH Stockholm, SwedenUNSPECIFIED
Platzek, DieterUNSPECIFIEDUNSPECIFIED
Toprak, MuhammetKTH Stockholm, SwedenUNSPECIFIED
Müller, EckhardUNSPECIFIEDUNSPECIFIED
Muhammed, MamounKTH Stockholm, SwedenUNSPECIFIED
Date:6 August 2006
Journal or Publication Title:Proceedings of the 25th International Conference on Thermoelectrics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 678-681
Editors:
EditorsEmail
Rogl, PeterUNSPECIFIED
Publisher:IEEE, Piscataway
ISSN:1094-2734
ISBN:1-4244-0811-3
Status:Published
Keywords:thermoelectric materials, Skutterudites, Nanostructure, Phase composition, composites
Event Title:25th International Conference on Thermoelectrics
Event Location:Vienna, Austria
Event Type:international Conference
Event Dates:6.-10. August 2006
Organizer:Universität Wien
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems (old)
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Virtual Engine and Validation Methods (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Structural and Functional Ceramics
Deposited By: Stiewe, Dr.rer.nat Christian
Deposited On:08 Jan 2007
Last Modified:27 Apr 2009 13:17

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