Thermoelectric properties of single crystalline B4C prepared by a floating zone method

I. Gunjishima, T. Akashi, T. Goto

研究成果: Article査読

20 被引用数 (Scopus)

抄録

High-purity single crystalline B4C, several cm in size, has been prepared by a Floating Zone method. The electrical conductivity, Hall mobility, Seebeck coefficient and thermal conductivity are measured from room temperature to 1023 K. The electrical conductivity is about four times higher than that of sintered B4C. The mobility has increased with increasing temperature, indicating hopping conduction of charge carriers. The Seebeck coefficient is 240-260 μ VK-1, almost independent of temperature. The thermal conductivity is about twice higher than that of sintered B4C. The thermoelectric figure-of-merit is also higher than that of sintered B4C, being 4.2 × 10-5 K-1 at 1100 K.

本文言語English
ページ(範囲)1445-1450
ページ数6
ジャーナルMaterials Transactions
42
7
DOI
出版ステータスPublished - 2001

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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