Dynamic Wetting of Graphite and SiC by Ferrosilicon Alloys and Silicon at 1550°C

• Yunes Rubio Pedro J.

  School of Materials Science and Engineering, The University of New South Wales

• Hong Lang

  School of Materials Science and Engineering, The University of New South Wales

• Saha-Chaudhury N.

  School of Materials Science and Engineering, The University of New South Wales

• Bush Russell

  Yennora Manufacturing Facility, Tyco Water Pty. Ltd.

• Sahajwalla Veena

  School of Materials Science and Engineering, The University of New South Wales

書誌事項

タイトル別名

• Dynamic Wetting of Graphite and SiC by Ferrosilicon Alloys and Silicon at 1550.DEG.C.

抄録

Silicon-rich ferroalloys and coke are two of the most important raw materials used in the scrap-iron process, both reacting during melting. Fundamental study of high temperature interaction of ferrosilicon–graphite provides key knowledge for understanding the interfacial reaction and wettability at the solid/liquid interface. Although a large body of work has investigated the wettability for silicon and ferrosilicon on SiC, the dynamic wetting and the associated interfacial phenomena of the ferrosilicon alloys–graphite system has not been investigated in depth. Using the sessile droplet method, the dynamic wetting of synthetic graphite by liquid ferrosilicon alloys containing 24.7 and 74% Si and silicon (98.5% Si) at 1550°C is reported. A sharp decrease in contact angle was observed for high-silicon ferroalloys and silicon, until full wetting was reached within 90 s. However, the wettability changed slowly for FeSi 24.7% (FeSi 24.7) and the final contact angle remained constant at around 70°. X-ray diffraction (XRD) investigations were carried out on the graphite/metal droplet interface to study the interfacial products formed and its influence on the wetting phenomena. The dynamic wetting is seen to be strongly dependent on the time required for the formation of SiC in the interface of ferrosilicon–graphite.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 46 (11), 1570-1576, 2006

  一般社団法人 日本鉄鋼協会

キーワード

• wettability
• interfacial reaction
• ferrosilicon
• graphite

詳細情報

• CRID: 1390282681465942272
• NII論文ID: 10018555147
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.46.1570
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational/46/11/46_11_1570/_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