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Microstructure and thermoelectric properties of p-type Mg2Sn prepared by RF induction melting

Chen , H. Y. and Savvides, N. and Stiewe, C. and Dasgupta, T. and Müller, E. (2009) Microstructure and thermoelectric properties of p-type Mg2Sn prepared by RF induction melting. 11th International Conference on Advanced Materials ICAM 2009, 20.-25. September 2009, Rio de Janeiro, Brasilien.

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Abstract

Silver-doped Mg2Sn bulk crystals were prepared by RF induction melting in a boron nitride crucible under 1 atm Argon. The microstructure of the ingots was analyzed by X-ray diffraction, scanning electron microscopy and energy-dispersive X-ray spectroscopy. The Hall coefficient, Seebeck coefficient, electrical conductivity, and thermal conductivity were measured in the temperature range of 80-700 K to establish a correlation between the composition, microstructure and thermoelectric properties. The whole process of preparing one ingot needed only 5 hours, and the thermoelectric properties are very similar to those of the near-singlecrystal ingots prepared by the Bridgman method requiring 100 hours.

Item URL in elib:https://elib.dlr.de/61128/
Document Type:Conference or Workshop Item (Speech)
Title:Microstructure and thermoelectric properties of p-type Mg2Sn prepared by RF induction melting
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Chen , H. Y.CSIRO Materials Science & Engineering, Sydney 2070, AustraliaUNSPECIFIED
Savvides, N.CSIRO Materials Science & Engineering, Sydney 2070, AustraliaUNSPECIFIED
Stiewe, C.German Aerospace Center, Institute of Materials Research, Köln, GermanyUNSPECIFIED
Dasgupta, T.German Aerospace Center, Institute of Materials Research, Köln, GermanyUNSPECIFIED
Müller, E.German Aerospace Center, Institute of Materials Research, Köln, GermanyUNSPECIFIED
Date:22 September 2009
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Accepted
Keywords:thermoelectric properties - measurement - Seebeck coefficient, elecitrical and thermal conductivities - X-ray diffraction spectroscopy
Event Title:11th International Conference on Advanced Materials ICAM 2009
Event Location:Rio de Janeiro, Brasilien
Event Type:international Conference
Event Dates:20.-25. September 2009
Organizer:International Union of Material Research Societies
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 - no assignment (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Thermoelectric Materials and Systems
Deposited By: Zabrocki, Dr. Knud
Deposited On:25 Nov 2009 14:04
Last Modified:25 Nov 2009 14:04

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