Mejri, Mahdi
and Thimont, Yohann and Malard, Benoît and Estournès, Claude
Characterization of the thermo-mechanical properties of p-type (MnSi1.77) and n-type (Mg2Si0.6Sn0.4) thermoelectric materials.
(2019)
Scripta Materialia, 172. 28-32. ISSN 1359-6462
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(Document in English)
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 1MB |
Official URL: https://doi.org/10.1016/j.scriptamat.2019.06.037
Abstract
The thermoelectric generators reliability is highly sensitive to the materials they are made off. This work aims to characterize the structure, microstructure, emissivity and thermo-mechanical properties of p-type (MnSi1.77) and n-type (Mg2Si0.6Sn0.4) highly promising thermoelectric materials. In particular, the temperature dependence of the Young's modulus, evaluated by impulse excitation technique, shows for both materials values higher than those reported in literature. Fracture toughness measured by both single edge notched beam and indentation methods exhibits similar values to those reported in the literature. Micro-indentation measurements reveal that the hardness values of the MnSi1.77 are significantly higher than the Mg2Si0.6Sn0.4 one.
| Item Type: | Article |
|---|---|
| HAL Id: | hal-02186148 |
| Audience (journal): | International peer-reviewed journal |
| Uncontrolled Keywords: | |
| Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) |
| Laboratory name: | |
| Funders: | Agence Nationale de la Recherche- ANR |
| Statistics: | download |
| Deposited On: | 17 Jul 2019 07:52 |
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