Thermoelectric properties of layered FeSi2 thermoelectric conversion module produced by Spark Plasma Sintering Method

Hironori Suzuki, Yukihiro Higashi, Takuya Yasuno

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The 5 pair layered FeSi2 thermoelectric conversion module was manufactured by sintering five layers of p type and n type powder at the same time, using SPS (spark plasma sintering) method. This process is expected to have higher reliability and shorter manufacturing time compared with conventional process which is performed by joining machined p type and n type element with the electrode. Maximum power of 32.4 mW was provided by this module under the condition of heating temperature 773 K and cooling temperature 293 K. The changes of the module shape and sintering condition greatly changed the performance of this module. By the optimization of the sintering condition and the shape, the performance of this process can be expected to be higher. To obtain the high performance it is necessary to develop the module shape which has large temperature difference with low electric resistance and sintering condition which enable low thermal conductivity with high density.

Original languageEnglish
Pages (from-to)457-461
Number of pages5
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume62
Issue number9
DOIs
Publication statusPublished - Sep 1 2015
Externally publishedYes

Fingerprint

Spark plasma sintering
Sintering
Joining
Powders
Temperature
Thermal conductivity
Cooling
Heating
Electrodes

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

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