ネオジム中の酸素の固相エレクトロトランスポート

DOI Web Site 被引用文献4件 参考文献17件
  • 佐野 浩行
    Graduate School of Engineering, Nagoya University, Chikusa–ku, Nagoya 464–8603
  • 吉田 貴行
    Graduate School of Engineering, Nagoya University, Chikusa–ku, Nagoya 464–8603
  • 黒田 健介
    Center for Integrated Research in Science and Engineering, Nagoya University
  • 藤澤 敏治
    Research Center for Advanced Waste and Emission Management, Nagoya University
  • 山内 睦文
    Graduate School of Engineering, Nagoya University, Chikusa–ku, Nagoya 464–8603

書誌事項

タイトル別名
  • Solid State Electrotransport of Oxygen in Neodymium.
  • ネオジム チュウ ノ サンソ ノ コソウ エレクトロトランスポート

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抄録

Solid state electrotransport of oxygen in neodymium was studied. The effective valence Z* and the non-dimensional number δ (= uEL/D；u：mobility, E：electric field intensity, L：length of specimen, D：diffu-sion coefficient) of oxygen were measured by the tangent method under the following conditions；electric field intensity = 1.9∼2.5 Vm-1, temperature = 973∼1,223 K, initial oxygen content = 0.01∼0.11 mass %. The results can be summarized as follows： (i) The absolute values of the effective valence and δ of oxygen decrease with increasing either electric field intensity or temperature. (ii) The diffusion coefficient of oxygen in neodymium was determined as follows：DO /m2 s-1 = 0.26 exp (-196000/RT) (Nd(α)：973 ∼ 1,073 K)DO /m2 s-1 = 1.6 × 10-2 exp (-180000/RT) (Nd(β)：1,173 ∼ 1,223 K) (iii)Mobility of oxygen in neodymium increased with increasing temperature.

収録刊行物

  • 資源と素材

    資源と素材 115 (1), 54-58, 1999

    一般社団法人 資源・素材学会

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