| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Alloys and Compounds for Thermoelectric and Solar Cell Applications XIII
|
| Presentation Title |
Thermoelectric Properties of Melt-Spun Assisted Microstructural Engineering of Higher Manganese Silicide |
| Author(s) |
Suresh Perumal, Madhuvathani G S, Ravi Kottan Renganayagalu, Subburayalu S |
| On-Site Speaker (Planned) |
Suresh Perumal |
| Abstract Scope |
Thermoelectric (TE) technology is considered an efficient energy conversion route for the development of an eco-friendly environment as it operates without emitting toxic gases [1]. Most of the state-of-the-art TE materials do not relatively draw much interest to the next level of commercialization because of their expensiveness and toxic elements. In this context, higher manganese silicide (HMS) is seen to be a viable choice for mid-temperature TE material due to its superior transport properties [2]. Here, we report the enhanced TE properties of Si-rich HMS by engineering their microstructures via melt-spinning method. Further, the solidification behavior of melt-spun ribbons is studied using CALPHAD and COMSOL software. Importantly, the effect of melt spinning on the thermal conductivity of HMS and the suppression of bipolar conduction is discussed in detail. Overall, a high figure of merit of 0.47 at 773 K is achieved with a maximum hardness of 13.2 GPa. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Electronic Materials, Solidification |