한국분말야금학회:학술대회논문집 (Proceedings of the Korean Powder Metallurgy Institute Conference)

한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
권호 표지

Thermoelectric Properties of Vacuum Hot-pressed $Ba_8Al_{16}Si_{30}$ Clathlate

  • Lee, Joo-Ho (Department of Materials Science and Engineering/ReSEM, Chungju National University) ;
  • Lee, Jung-Il (Department of Materials Science and Engineering/ReSEM, Chungju National University) ;
  • Kim, Young-Ho (Department of Materials Science and Engineering/ReSEM, Chungju National University) ;
  • Kim, Il-Ho (Department of Materials Science and Engineering/ReSEM, Chungju National University) ;
  • Jang, Kyung-Wook (Department of Materials Science and Engineering/ReSEM, Hanseo University) ;
  • Ur, Soon-Chul (Department of Materials Science and Engineering/ReSEM, Chungju National University)
  • 발행 : 2006.09.24
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초록

Type I clathrate $Ba_8Al_{16}Si_{30}$ was produced by arc melting and hot pressing and thermoelectric properties were investigated. Negative Seebeck coefficient at all temperatures measured, which means that the majority carriers are electrons. Electrical conductivity decreased by increasing temperature and thermal conductivity was 0.012 W/cmK at room temperature and dimensionless thermoelectric figure of merit (ZT) was 0.01 at 873K.

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