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Stability and thermoelectric performance of doped higher manganese silicide materials solidified by RGS (ribbon growth on substrate) synthesis

Pichon, Pierre-Yves and Berneron, Pierre and Levinsky, Joshua and Burema, Arjan and Graeme, Blake and Berthebaud, David and Gascoin, Stephanie and Gascoin, Frank and Herbert, Sylvie and Amtsfeld, Jonas and Hommels, Tijmen and Huijben, Mark and de Boor, Johannes and Müller, Eckhard and Navone, Christelle and Schönecker, Axel (2020) Stability and thermoelectric performance of doped higher manganese silicide materials solidified by RGS (ribbon growth on substrate) synthesis. Journal of Alloys and Compounds, 832 (154602). Elsevier. doi: 10.1016/j.jallcom.2020.154602. ISSN 0925-8388.

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Large scale deployment of thermoelectric devices requires that the thermoelectric materials have stable electrical, thermal and mechanical properties under the conditions of operation. In this study we examine the high temperature stability of higher manganese silicide (HMS) materials prepared by the RGS (ribbon growth on substrate) technique. In particular we characterize the effect of element substitution on the structural and electrical changes occurring at the hot side of temperatures of thermoelectric devices relevant to this material (600°C). Only by using suitable substitution (4% vanadium at the Mn site) can we obtain temperature-independent structural parameters in the range 20°C - 600°C, a condition that results in stable electrical properties. Additionally, we show that 4% vanadium substitution at the Mn site offers the best thermoelectric figure of merit among the different compositions reported here with ZTmax=0.52, a value comparable to the state of the art for HMS materials. Our analysis suggests that ionized impurity scattering is responsible for the better performance of this material.

Item URL in elib:https://elib.dlr.de/137151/
Document Type:Article
Title:Stability and thermoelectric performance of doped higher manganese silicide materials solidified by RGS (ribbon growth on substrate) synthesis
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Pichon, Pierre-Yvespichon (at) rgsdevelopment.nlUNSPECIFIED
Berneron, Pierreberneron (at) rgsdevelopment.nlUNSPECIFIED
Levinsky, Joshuaj.levinsky (at) rug.nlUNSPECIFIED
Burema, Arjana.a.burema (at) rug.nlUNSPECIFIED
Graeme, Blakeg.r.blake (at) rug.nlUNSPECIFIED
Berthebaud, DavidDavid.BERTHEBAUD (at) cnrs.frUNSPECIFIED
Gascoin, Stephaniestephanie.gascoin (at) ensicaen.frUNSPECIFIED
Gascoin, Frankfranck.gascoin (at) ensicaen.frUNSPECIFIED
Herbert, Sylviesylvie.hebert (at) ensicaen.frUNSPECIFIED
Amtsfeld, Jonasjonas.amtsfeld (at) gmail.comUNSPECIFIED
Hommels, Tijmentijmenhommels (at) hotmail.comUNSPECIFIED
Huijben, Markm.huijben (at) utwente.nlUNSPECIFIED
de Boor, JohannesGerman aerospace center, institute of materials research, köln, germanyhttps://orcid.org/0000-0002-1868-3167
Müller, EckhardInstitute of Materials Research, German Aerospace Center (DLR), Institute of Materials Research – Thermoelectric Materials and Systems, 51147 Köln Porz-Wahnheide, Linder Höhe, Germany and Justus Liebig University Giessen, Institute of Inorganic and AnalytUNSPECIFIED
Navone, Christellechristelle.navone (at) cea.frUNSPECIFIED
Schönecker, Axelschonecker (at) rgsdevelopment.nlUNSPECIFIED
Date:15 August 2020
Journal or Publication Title:Journal of Alloys and Compounds
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.jallcom.2020.154602
Keywords:Thermoelectric materials; crystal growth; microstructure; crystal structure; electrical transport
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:propulsion systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Turbine Technologies (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Thermoelectric Materials and Systems
Deposited By: Frank, Adina
Deposited On:06 Nov 2020 09:44
Last Modified:06 Nov 2020 09:44

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