Effect of microstructure on the thermal conductivity of nanostructured Mg2(Si,Sn) thermoelectric alloys: An experimental and modeling approach
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | BELLANGER, Philippe | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GORSSE, Stéphane | |
| hal.structure.identifier | Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux [LITEN] | |
| dc.contributor.author | BERNARD-GRANGER, Guillaume | |
| hal.structure.identifier | Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux [LITEN] | |
| dc.contributor.author | NAVONE, Christelle | |
| hal.structure.identifier | Institut Jean Lamour [IJL] | |
| dc.contributor.author | REDJAÏMIA, Abdelkrim | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | VIVÈS, Solange | |
| dc.date.issued | 2015 | |
| dc.identifier.issn | 1359-6454 | |
| dc.description.abstractEn | In this work, we produce bulk nanostructured Mg2Si0.4Sn0.6 thermoelectric materials made of nanograins with sizes below 200 nm and containing a fine distribution of Sn-rich nanoparticles. These materials are obtained by the mechanical alloying followed by spark plasma sintering. The microstructure and transport properties, and their evolutions upon aging, are investigated. A model is developed to capture the different contributions to the phonon scattering processes arising from the nano/microstructural parameters. The calculations show quantitative agreement with the temperature and the temporal dependence of the lattice thermal conductivity of the nanostructured Mg2Si0.4Sn0.6 alloy. This work provides a general analytic approach for identifying the individual contributions of the microstructural parameters on the thermal conductivity which is a very important property controlling the performance of thermoelectric materials. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Thermoelectrics | |
| dc.subject.en | Magnesium silicides | |
| dc.subject.en | Nanostructuration | |
| dc.subject.en | Thermal conductivity reduction | |
| dc.subject.en | Spark plasma sintering | |
| dc.title.en | Effect of microstructure on the thermal conductivity of nanostructured Mg2(Si,Sn) thermoelectric alloys: An experimental and modeling approach | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.actamat.2015.05.010 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Acta Materialia | |
| bordeaux.page | 102-110 | |
| bordeaux.volume | 95 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01160436 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01160436v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Acta%20Materialia&rft.date=2015&rft.volume=95&rft.spage=102-110&rft.epage=102-110&rft.eissn=1359-6454&rft.issn=1359-6454&rft.au=BELLANGER,%20Philippe&GORSSE,%20St%C3%A9phane&BERNARD-GRANGER,%20Guillaume&NAVONE,%20Christelle&REDJA%C3%8FMIA,%20Abdelkrim&rft.genre=article |
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