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de Boor, Johannes und Zabrocki, Knud und Frohring, J. und Müller, Eckhard (2014) Electrical conductivity measurements on disk-shaped samples. Review of Scientific Instruments, 85 (7), 075104. American Institute of Physics (AIP). doi: 10.1063/1.4886812. ISSN 0034-6748.
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Kurzfassung
We have developed a sample holder design that allows for electrical conductivity measurements on a disk-shaped sample. The sample holder design is based on and compatible with popular measurement systems that are currently restricted to bar-shaped samples. The geometrical correction factors which account for the adjusted measurement configuration were calculated using finite element modeling for a broad range of sample and measurement geometries. We also show that the modeling results can be approximated by a simple analytical fit function with excellent accuracy. The proposed sample holder design is compatible with a concurrent measurement of the Seebeck coefficient. The chosen sample geometry is furthermore compatible with a thermal conductivity measurement using a laser flash apparatus. A complete thermoelectric characterization without cutting the sample is thus possible.
| elib-URL des Eintrags: | https://elib.dlr.de/92612/ | ||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||
| Titel: | Electrical conductivity measurements on disk-shaped samples | ||||||||||||||||||||
| Autoren: |
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| Datum: | 9 Juli 2014 | ||||||||||||||||||||
| Erschienen in: | Review of Scientific Instruments | ||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||
| Open Access: | Ja | ||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||||||
| Band: | 85 | ||||||||||||||||||||
| DOI: | 10.1063/1.4886812 | ||||||||||||||||||||
| Seitenbereich: | 075104 | ||||||||||||||||||||
| Verlag: | American Institute of Physics (AIP) | ||||||||||||||||||||
| ISSN: | 0034-6748 | ||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||
| Stichwörter: | Sample handling; measurement electrical conductivity; electrical resisitivity; geomtry correction factor; FEM | ||||||||||||||||||||
| 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 - Fahrzeugenergiesystem III (alt) | ||||||||||||||||||||
| Standort: | Köln-Porz | ||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Werkstoff-Forschung > Thermoelektrische Materialien und Systeme | ||||||||||||||||||||
| Hinterlegt von: | Zabrocki, Dr. Knud | ||||||||||||||||||||
| Hinterlegt am: | 01 Dez 2014 10:14 | ||||||||||||||||||||
| Letzte Änderung: | 29 Nov 2023 08:28 |
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