Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Consolidation of Thermoelectric Semiconductor Powder by MPC and Their Microstructure

MPC 공정에 의한 열전반도체 분말의 성형 및 미세조직

  • Han, Tae-Bong (Kongju National University, Division of Advanced Materials Engineering) ;
  • Hong, Soon-Jik (Kongju National University, Division of Advanced Materials Engineering)
  • Published : 2008.05.08
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Abstract

N-Type $SbI_3$-doped $95%{Bi_2}{Te_3}-5%{Bi_2}{Se_3}$ compounds were prepared by a gas atomization and Magnetic Pulsed Compaction process. The dynamic recrystallization and thermoelectric properties of the MPCed bulks with consolidation temperatures and times were investigated by a combination of microscopy, XRD and thermoelectric property testing. The microstructure of MPCed bulk shows homogeneous and fine distribution through consolidated bulks due to dynamic recrystallization during hot MPC. This research presented the challenges toward the successful consolidation of thermoelectric powder using magnetic pulsed compaction (MPC).

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