Transactions of the Indian Institute of Metals

, Volume 72, Issue 10, pp 2711–2719 | Cite as

Thermoelectric Properties of Iron Disilicide and Manganese Silicide: Synthesis and Characterization

  • V. S. PoddarEmail author
  • N. B. Dhokey
Technical Paper


Among the thermoelectric materials, silicides are the group of thermoelectric materials which are eco-friendly (Han et al. in Aust Inst Innov Mater (Chin Sci Bull) 59: 2073, 2014) and can be considered as the promising high-temperature energy harvesting materials. The exclusivity about the synthesis route used is that it is economical, scalable and less time-consuming (20-h synthesis period), and minimum metallic content in the synthesized samples and same milling setup was used to synthesize two different high-temperature silicides, that is, iron disilicide and manganese silicide. The Seebeck coefficient was found to increase gradually with the increase in temperature and was found to be more for MnSi1.73 (156 μV/K at 1150 K) than β-FeSi2 (135 μV/K in the temperature range of about 1000–1050 K). The MnSi1.73 (0.37) was found to have higher ZT value than β-FeSi2 (0.23).


Attrition Thermoelectric Hot pressing 



The authors are very much grateful to the Department of Physics, Savitribai Phule Pune University, Pune, Maharashtra, India, for providing XRD analysis facility, Department of Physics, Indian Institutes of Science Education and Research, Pune, for thermoelectric property evaluation facility and Armament Research and Development Establishment (ARDE), Pune, Maharashtra, India, for providing laser particle size analysis facility.


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Copyright information

© The Indian Institute of Metals - IIM 2019

Authors and Affiliations

  1. 1.Department of Metallurgy and Materials ScienceCollege of Engineering PunePuneIndia

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