CoSb_3の熱電特性に及ぼすMGの効果 Effect of MG on the Thermoelectric Properties of CoSb_3

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The effect of mechanical grinding (MG) on the thermoelectric properties of the skutterudite material CoSb<SUB>3</SUB> was examined. The sign of the thermoelectric power (a) of CoSb<SUB>3</SUB> which was not exposed to MG treatment (no-MG-sample) was positive, while that of CoSb<SUB>3</SUB> which was exposed to MG treatment (MG-sample) was negative. With an increase of temperature, the electrical resistivity (ρ) of no-MG-sample increases, but that of MG-sample decreases. The thermal conductivity (k) of the material was decreased by MG treatment, which are ascribed to the decrease of the grain size by the MG treatment. The figure of merit (Z=α<SUP>2</SUP>/(ρ⋅k)) of no-MG-sample is larger than that of MG-sample in the temperature range from room temperature to 500°C.

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), 29-33, 1997-01-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002013210
  • 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
    4118694
  • 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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