Zhou, A. J. und Zhao, X. B. und Zhu, T. J. und Cao, Y. Q. und Stiewe, C. und Haßdorf, R. und Müller, E. (2009) Composites of Higher Manganese Silicides and Nanostructured Secondary Phases and Their Thermoelectric Properties. Journal of Electronic Materials, 38 (7), Seiten 1072-1077. Springer. doi: 10.1007/s11664-009-0774-7. ISSN 1543-186X .
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Kurzfassung
Composites of higher manganese silicides (HMS) and hydrothermally synthesized nanostructured Ag2Te or PbTe powders were fabricated by mechanical mixing and hot-pressing. A reduction of the thermal conductivity and an increase of the Seebeck coefficient were obtained for the Ag2Te/HMS composite, while the Seebeck coefficient of the PbTe/HMS composite was less influenced and its thermal conductivity decreased too. However, both composites showed a considerably reduced electrical conductivity, which degraded the figure of merit. The lattice contribution was found to be the main part of the thermal conductivity for all the samples. The present results indicate that introducing a secondary phase into a matrix material could be an effective way to reduce the thermal conductivity. On the other hand, a more detailed design of the microstructures and the distribution of the secondary phases is still needed with respect to the effect on the electrical properties.
elib-URL des Eintrags: | https://elib.dlr.de/61083/ | ||||||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||||||
Titel: | Composites of Higher Manganese Silicides and Nanostructured Secondary Phases and Their Thermoelectric Properties | ||||||||||||||||||||||||||||||||
Autoren: |
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Datum: | 21 April 2009 | ||||||||||||||||||||||||||||||||
Erschienen in: | Journal of Electronic Materials | ||||||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||||||
Band: | 38 | ||||||||||||||||||||||||||||||||
DOI: | 10.1007/s11664-009-0774-7 | ||||||||||||||||||||||||||||||||
Seitenbereich: | Seiten 1072-1077 | ||||||||||||||||||||||||||||||||
Verlag: | Springer | ||||||||||||||||||||||||||||||||
ISSN: | 1543-186X | ||||||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||||||
Stichwörter: | Higher manganese silicides (HMS) - hot-pressing - thermoelectric properties - composites | ||||||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||||||
HGF - Programm: | Verkehr | ||||||||||||||||||||||||||||||||
HGF - Programmthema: | Bodengebundener Verkehr (alt) | ||||||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Verkehr | ||||||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | V BF - Bodengebundene Fahrzeuge | ||||||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | V - Fahrzeugenergiesysteme (alt) | ||||||||||||||||||||||||||||||||
Standort: | Köln-Porz | ||||||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Werkstoff-Forschung > Thermoelektrische Materialien und Systeme | ||||||||||||||||||||||||||||||||
Hinterlegt von: | Zabrocki, Dr. Knud | ||||||||||||||||||||||||||||||||
Hinterlegt am: | 24 Nov 2009 16:43 | ||||||||||||||||||||||||||||||||
Letzte Änderung: | 10 Jan 2019 15:09 |
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