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Direct Solid State Synthesis of Zn4Sb3 by Hot Pressing and Thermoelectric Properties

열간 압축 공정에 의한 Zn4Sb3의 직접 고상 반응 합성 및 열전특성

  • Ur Soon-Chul (Dept. of Materials Science & Engineering/Research Center for Sustainable ECo-Device & Materials, Chungju National University)
  • 어순철 (충주대학교 신소재공학과/친환경 에너지 변환, 저장소재 및 부품개발 연구센터)
  • Published : 2005.08.01

Abstract

Direct solid state synthesis by hot pressing has been applied in order to produce high efficiency $Zn_4Sb_3$ bulk specimens. Single phase $Zn_4Sb_3$ with 98.5% of theoretical density was successfully produced by direct hot pressing of elemental powders containing 1.2 at.% excess Zn. Thermoelectric properties as a function of temperature were investigated from room temperature to 600 K and compared with results of other studies. Transport properties at room temperature were also evaluated. Thermoelectric properties of single phase $Zn_4Sb_3$ materials produced by direct synthesis were measured and are comparable to the published data. Direct solid state synthesis by hot pressing provides a promising processing route in this material.

Keywords

References

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