アルミニウム溶湯とシリカの反応速度の温度依存性 Temperature Dependence of Reaction Rate for Molten Aluminum-Silica System

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  The temperature dependence of thermit type reaction of molten aluminum and silica was investigated. Reacted depth was measured for amorphous silica rods immersed in pure molten Al or Al-5 mass%Mg alloy at various temperatures up to 1273K for a certain period. It is clarified that the reaction rate peaks around 1173K, and the rate at 1273K is 10 times lower than that at the peak temperature. Reacted substrates formed above the peak temperature has coarser microstructure than those formed below the peak temperature. Furthermore, intermediate layers are observed between the reacted substrates and unreacted silica. This indicates that the diffusion of aluminum into silica beyond the thermit reaction may have caused the decrease in the rate above the peak temperature.

収録刊行物

  • 鋳造工学 = Journal of Japan Foundry Engineering Society

    鋳造工学 = Journal of Japan Foundry Engineering Society 69(1), 16-20, 1997-01

    Japan Foundry Engineering Society

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各種コード

  • NII論文ID(NAID)
    10003799779
  • NII書誌ID(NCID)
    AN10514770
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13420429
  • NDL 記事登録ID
    4118735
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-277
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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