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Skomedal, Gunstein und Kristiansen, Nils R. und Sottong, Reinhard und Middleton, Hugh (2017) Evaluation of Thermoelectric Performance and Durability of Functionalized Skutterudite Legs. Journal of Electronic Materials. Springer. doi: 10.1007/s11664-017-5309-z. ISSN 0361-5235.
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Kurzfassung
Thermoelectric generators are a promising technology for waste heat recovery. As new materials and devices enter a market penetration stage, it is of interest to employ fast and efficient measurement methods to evaluate the long-term stability of thermoelectric materials in combination with metallization and coating (functionalized thermoelectric legs). We have investigated a method for measuring several thermoelectric legs simultaneously. The legs are put under a common temperature gradient, and the electrical characteristics of each leg are measured individually during thermal cycling. Using this method, one can test different types of metallization and coating applied to skutterudite thermoelectric legs and look at the relative changes over time. Postcharacterization of these initial tests with skutterudite legs using a potential Seebeck microprobe and an electron microscope showed that oxidation and interlayer diffusion are the main reasons for the gradual increase in internal resistance and the decrease in open-circuit voltage. Although we only tested skutterudite material in this work, the method is fully capable of testing all kinds of material, metallization, and coating. It is thus a promising method for studying the relationship between failure modes and mechanisms of functionalized thermoelectric legs.
| elib-URL des Eintrags: | https://elib.dlr.de/115101/ | ||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||
| Titel: | Evaluation of Thermoelectric Performance and Durability of Functionalized Skutterudite Legs | ||||||||||||||||||||
| Autoren: |
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| Datum: | 7 Februar 2017 | ||||||||||||||||||||
| 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 | ||||||||||||||||||||
| DOI: | 10.1007/s11664-017-5309-z | ||||||||||||||||||||
| Verlag: | Springer | ||||||||||||||||||||
| ISSN: | 0361-5235 | ||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||
| Stichwörter: | Skutterudite, Thermal cycling, Degradation, Oxidation, Interlayer diffusion, Coating | ||||||||||||||||||||
| 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 - NGC-Antriebsstrang (alt) | ||||||||||||||||||||
| Standort: | Köln-Porz | ||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Werkstoff-Forschung > Thermoelektrische Materialien und Systeme | ||||||||||||||||||||
| Hinterlegt von: | Yasseri, Mohammad | ||||||||||||||||||||
| Hinterlegt am: | 22 Nov 2017 10:21 | ||||||||||||||||||||
| Letzte Änderung: | 10 Jan 2019 15:09 |
Verfügbare Versionen dieses Eintrags
- Evaluation of Thermoelectric Performance and Durability of Functionalized Skutterudite Legs. (deposited 22 Nov 2017 10:21) [Gegenwärtig angezeigt]
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