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Naslov:Thermal Effusivity Investigations of Solid Thermoelectrics Using the Front Photopyroelectric Detection
Avtorji:ID Tripon, Carmen, National Institute for R&D of Isotopic and Molecular Technologies, 67‑103 Donat Str., Cluj‑Napoca, Romania (Avtor)
ID Dadarlat, Dorin, National Institute for R&D of Isotopic and Molecular Technologies, 67‑103 Donat Str., Cluj‑Napoca, Romania (Avtor)
ID Kovacs, Katalin, National Institute for R&D of Isotopic and Molecular Technologies, 67‑103 Donat Str., Cluj‑Napoca, Romania (Avtor)
ID Tosa, Victor Petru, Faculty of Material Science and Environmental Engineering, Technical University of Cluj-Napoca, Cluj‑Napoca, Romania (Avtor)
ID Franko, Mladen, Laboratory for Environmental and Life Sciences, University of Nova Gorica (Avtor)
Datoteke: Gradivo nima datotek, ki so prostodostopne za javnost. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:The front photopyroelectric configuration (FPPE), making use of air as a coupling fluid between the sample and sensor, was applied to measure the thermal effusivity of some solid thermoelectric materials. The investigated samples were ZnO, CuCrO2, Cu4Sn7S16, TiS3 and two samples of high manganese silicide (HMS) thermoelectric materials. Most of these materials are porous and consequently, the classical PPE method, making use of standard coupling fluids between sensor and sample, cannot be used due to the fact that the coupling fluid penetrates inside the sample and leads to incorrect results. With this work we extend (to thermoelectric solids) the area of application of a method, recently proposed by Salazar et al. (Measurement 121: 96, 2018). Experimentally, the thermal effusivity is obtained from a multi-parametric fit of the phase of the FPPE signal as a function of the modulation frequency (with sample’s thermal effusivity, thickness of the sensor-sample air gap and heat losses by convection and radiation, as fitting parameters). It was demonstrated that, in some particular cases, the three parameters are independent and consequently, the solution of the fit is unique. Where possible, the obtained results have been compared with data from the literature and good agreement was found.
Ključne besede:Front photopyroelectric configuration (FPPE), Solid thermoelectrics, Thermal effusivity
Verzija publikacije:Objavljena publikacija
Leto izida:2020
Št. strani:11
Številčenje:41
PID:20.500.12556/RUNG-5197-d786c7de-fd0b-21ac-6b58-5e7f0d1caf41 Novo okno
COBISS.SI-ID:13402371 Novo okno
DOI:https://doi.org/10.1007/s10765-019-2593-2 Novo okno
NUK URN:URN:SI:UNG:REP:MHZEBZHY
Datum objave v RUNG:02.05.2020
Število ogledov:2864
Število prenosov:0
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Gradivo je del zbornika

Naslov:20 International conference on photoacoustic and photothermal phenomena

Gradivo je del revije

Naslov:International Journal of Thermophysics
Skrajšan naslov:Int. J. Thermophys.
Založnik:Springer
Leto izida:2020

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
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Začetek licenciranja:01.05.2020

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