한국결정성장학회:학술대회논문집 (Proceedings of the Korea Association of Crystal Growth Conference)

한국결정성장학회 (The Korea Association of Crystal Growth)
권호 표지

Electrical Current Applied Hot Pressing Processing of $Bi_2Te_3$- $Bi_2Se_3$ Thermoelectrics

  • Park, S.C. (Department of Materials Science and Engineering, Ajou University) ;
  • D.G.Baik (Department of Materials Science and Engineering, Ajou University) ;
  • Hwang, C.W. (Department of Materials Science and Engineering, Ajou University)
  • 발행 : 1996.06.01
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초록

Bimuth telluride type thermoelectrics are prepared by AC current applied got pressing method. It is possible to minimize the defects arising from the vaporization of Te, because of the very short processing time. The optimum conditions for the got pressing of 95mol% $Bi_2Te_3$-5mol%$Bi_2Se_3$ themoelectrics are sintered at $400^{\circ}C$, for 2min. with 1500 kgf/$cm^2$ from the particle size of 125 to 250 $\mu$m rang of powder. the resulted Z value (figure of merit) was 2.2$\times$10-3deg-1.

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