Effect of Different Processing Routes on the Power Factor of the Filled Skutterudite Sm (Fe Ni ) Sb (x = 0.50-0.80; y = 0.12-0.53) y x 1-x 4 12

Cristina Artini, Giovanna Latronico, Riccardo Carlini, Shrikant Saini, Tsunehiro Takeuchi, Seongho Choi, Angelica Baldini, Umberto Anselmi-Tamburini, Fabrizio Valenza, Paolo Mele

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The effect of varying the applied pressure during the processing by spark plasma sintering (SPS) of samples belonging to the Sm (Fe Ni ) Sb y x 1-x 4 12 system has been investigated by evaluating the power factor of the obtained filled skutterudite. A strong dependence of both the electrical conductivity and the Seebeck coefficient on the applied pressure has been observed. The highest power factor was detected at different pressures for the different compositions, being the optimal value 180 MPa for the sample with x = 0.80, and 400 MPa for the samples with x = 0.50 and x = 0.63. Relying on the present results, a possible further improvement of power factor of samples with x = 0.50 and x = 0.63 by enhancing the applied pressure above 400 MPa cannot be excluded.

Original languageEnglish
Pages (from-to)29-37
Number of pages9
JournalES Materials and Manufacturing
Volume5
DOIs
Publication statusPublished - 2019 Sep

Keywords

  • filled skutterudites
  • power factor
  • processing
  • spark plasma sintering
  • Thermoelectricity

ASJC Scopus subject areas

  • Building and Construction
  • Ceramics and Composites
  • Metals and Alloys
  • Polymers and Plastics
  • Applied Mathematics
  • Modelling and Simulation
  • Numerical Analysis

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