Activity Coefficient of Strontium in Liquid Copper and the Standard Free Energy of Formation for SrO・6Al_2O_3 and SrO・2Al_2O_3

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The activity coefficient of strontium in a copper melt has been investigated by a chemical equilibrium technique in the temperature range from 1473 to 1773 K. A graphite crucible was used to control the oxygen partial pursuer in CO gas. The activity coefficient was derived from the standard free energy of formation of SrO, the oxygen partial pressure, and the concentration of strontium in copper.<BR>The standard free energies of formation for SrO·6Al<SUB>2</SUB>O<SUB>3</SUB> and SrO·2Al<SUB>2</SUB>O<SUB>3</SUB> at 1723 K are also derived by equilibrating Al<SUB>2</SUB>O<SUB>3</SUB>, SrO·6Al<SUB>2</SUB>O<SUB>3</SUB>, and SrO·2Al<SUB>2</SUB>O<SUB>3</SUB> with Cu.

収録刊行物

  • Materials transactions

    Materials transactions 49(6), 1338-1341, 2008-06-01

    The Japan Institute of Metals and Materials

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各種コード

  • NII論文ID(NAID)
    10021147544
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13459678
  • NDL 記事登録ID
    9519250
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z53-J286
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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