アルミナ坩堝と溶鉄中炭素との平衡反応

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書誌事項

タイトル別名
  • Equilibria between Alumina Crucible and Carbon Dissolved in Iron
  • アルミナ ルツボ ト ヨウテツ チュウ タンソ ト ノ ヘイコウ ハンノウ

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抄録

Using the static method, a thermodynamic study has been carried out on the reaction between alumina crucible and carbon dissolved in iron in the temperature range of 1430°∼1700°C. The results were as follows: (1) The reaction being studied can be formulated as, Al2O3 (solid) + 3C (in molten Fe) = 3CO (gas) + 2Al (in molten Fe). (2) The standard free energy change of the reaction (where the standard state of activity of aluminium is defined as aAl⁄NAl=1, when NAl→0) has been obtaied as, ΔG°1703−1973°K=308,710−144.78T (3) Deoxidation constants of aluminium obtained from this study were in agreement within experimental error with the results by dynamic method of previous investigator and with calculated values based upon the hypothesis of regular solution for dilute solution of Al in Fe-Al binary system.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 26 (12), 769-773, 1962

    公益社団法人 日本金属学会

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