Shift of the Absorption Edge for the Charge Transfer Band in Slags Containing Iron Oxides.

• Hayashi Miyuki

  Department of Metallurgical Engineering, Faculty of Engineering, Tokyo Institute of Technology

• Susa Masahiro

  Department of Metallurgical Engineering, Faculty of Engineering, Tokyo Institute of Technology

• Oki Toshihiro

  Department of Metallurgical Engineering, Faculty of Engineering, Tokyo Institute of Technology

• Nagata Kazuhiro

  Department of Metallurgical Engineering, Faculty of Engineering, Tokyo Institute of Technology

抄録

The absorption edge shift for the charge transfer band has been investigated through absorption coefficient measurements on Fe₂O₃-CaO-SiO₂, Fe₂O₃-CaO-SiO₂-Al₂O₃ and Fe₂O₃-Na₂O-SiO₂ slags. The absorption edge was found to move slightly to higher wavelengths with increasing Fe₂O₃ content, but shifted markedly to higher wavelengths with increasing basicity i.e. (%CaO)/(%SiO₂) and (%Na₂O)/(%SiO₂) ratios and Al₂O₃ content. This absorption edge shift has been considered from the viewpoint of the ion refractivity of oxygen and it is proposed that the absorption edge shift is associated with changes of the electron donor power of oxygen ions.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 37 (2), 126-133, 1997

  一般社団法人 日本鉄鋼協会

キーワード

• slag
• charge transfer band
• absorption edge shift
• basicity
• electron donor power
• ion refractivity of oxygen
• theoretical optical basicity

詳細情報

• CRID: 1390001206452568704
• NII論文ID: 10002454922
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.37.126
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational1989/37/2/37_2_126/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可