Influence of Al and Mg Addition on Thermoelectric Properties of Higher Manganese Silicides Obtained by Reactive Sintering

QC 20170208
Higher manganese silicides (HMS), represented by MnSix (x = 1.71-1.75), are promising p-type candidates for thermoelectric (TE) energy harvesting systems at intermediate temperature range. The materials are very attractive as they may replace lead based compounds due to their nontoxicity, low cost of starting materials, and high thermal and chemical stability. Dense pellets were obtained through fast reactive sintering by spark plasma sintering (SPS). The addition -or nanoinclusion, of Al and Mg permitted the figure of merit enhancement of the material obtained with this technique, reaching the highest value of 0.40 at 600 degrees C. Morphology, composition and crystal structure of the samples were characterized by electron microscopies, energy dispersive X-ray spectroscopy, and X-ray diffraction analyses, respectively.

Boldrini, S. (author)
Saleemi, MohsinKTH,Stockholms universitet,Institutionen för material- och miljökemi (MMK),KTH Royal Institute of Technology, Sweden,Tillämpad fysik(Swepub:kth)u1hcd2l7 (author)
Famengo, A. (author)
Fiameni, S. (author)
Toprak, MuhammetKTH,Biomedicinsk fysik och röntgenfysik(Swepub:kth)u1u3m5a2 (author)
Fabrizio, M. (author)
Stockholms universitetInstitutionen för material- och miljökemi (MMK) (creator_code:org_t)

In:Journal of Nanoscience and Nanotechnology: American Scientific Publishers17:3, s. 1668-16731533-48801533-4899

By the author/editor: Battiston, S.; Boldrini, S.; Saleemi, Mohsin; Famengo, A.; Fiameni, S.; Toprak, Muhammet; show more...; Fabrizio, M.; show less...

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