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Process-structure-properties relationship in low-cost thermoelectric iron silicide synthesis.
- Source :
-
Ceramics International . Oct2022:Part B, Vol. 48 Issue 19, p29366-29371. 6p. - Publication Year :
- 2022
-
Abstract
- A trade-off between thermoelectric performance and cost-effectiveness makes commercial thermoelectric power generation possible in green energy applications. In this direction, FeSi 2 based thermoelectric material has excellent potential and possesses low-cost, earth abundance and non-toxic constituent elements; still, the thermoelectric performance of FeSi 2 materials is inferior to other mid-temperature thermoelectric materials. Also, the fabrication methods and synthesis routes are complex and time-consuming processes, restricting their competitiveness in mid-temperature applications. This work reports a simple processing strategy for β-FeSi 2 synthesis employing arc-melting and spark plasma sintering techniques. The improved thermoelectric performance and remarkable mechanical properties were realised using these techniques. A substantial improvement in the hardness value of ≃ 6.5 GPa and fracture toughness value of ≃ 3.18 MPa√m was achieved, mainly due to its microstructural features. The processing-structure-properties relationship was established to ensure FeSi 2 based thermoelectric materials' commercial viability. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 48
- Issue :
- 19
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 158608717
- Full Text :
- https://doi.org/10.1016/j.ceramint.2022.05.382