Nb_<2-x>Ce_xCuO_4焼結体の熱電特性 Thermoelectric Properties of Nd_<2-x>Ce_xO_4 Sintered Bodies

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Thermoelectric power factor and figure of merit of Nd<SUB>2-x</SUB>Ce<SUB>x</SUB>CuO<SUB>4</SUB> (x=0-0.1) sintered bodies were estimated from the Seebeck coefficient, electrical resistivity, and thermal conductivity measured in temperature range of 300-673 K. Temperature dependence of Seebeck coefficient and electrical resistivity showed n-type semiconducting behavior. Thermal conductivities, which decreased with increasing temperature for each Cc concentration, were in range of 3.7-7.5 Wm<SUP>-1</SUP>K<SUP>-1</SUP>. The power factor and the figure of merit for x=0.01 and 0.05 increased with decreasing temperature. Their maxima were 9.2⋅10<SUP>-5</SUP> Wm<SUP>-1</SUP>K<SUP>-2</SUP> and 1.7⋅10<SUP>-5</SUP>K<SUP>-1</SUP>, respectively, at 320 K for x=0.05. The figure of merit would be improved to some extent by reduction of lattice thermal conductivity.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 44(1), 50-54, 1997-01-15

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002013252
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    4118698
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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