Effect of Carbon Dissolution Reaction on Wetting Behavior between Liquid Iron and Carbonaceous Material

• Ohno Ko-ichiro

  Department of Materials Science and Engineering, Faculty of Engineering, Kyushu University

• Miyake Takahiro

  Formerly Graduated Student, Department of Materials Process Engineering, Graduate School of Engineering, Kyushu University

• Yano Shintaro

  Graduated Student, Department of Materials Process Engineering, Graduate School of Engineering, Kyushu University

• Nguyen Cao Son

  Graduated Student, Department of Materials Process Engineering, Graduate School of Engineering, Kyushu University

• Maeda Takayuki

  Department of Materials Science and Engineering, Faculty of Engineering, Kyushu University

• Kunitomo Kazuya

  Department of Materials Science and Engineering, Faculty of Engineering, Kyushu University

抄録

A low carbon operation is an unfavorable situation for liquid permeability around cohesive zone, because liquid volume will increase against solid coke in there. In order to keep a healthy operation with this technique, information of wetting behavior between liquid iron and coke should be correctly understood. However, there is not enough information about wetting behavior between them, because of many difficulties about wettability measurement from an active reaction between iron and carbonaceous materials. In this study, a sessile drop method with molten sample injection system was applied to measurement of wetting behavior between liquid iron and carbonaceous material at 1673 K for excluding reaction between samples before starting measurement. Carbonaceous material’s substrates were made from mixture powder of graphite and alumina by hot press at 1873 K. From the results, following knowledge was revealed. Molten iron samples un-saturated with carbon showed bigger values of contact angles, 110°–120°, at initial stage, than apparent constant values of them, 85°–100°, at latter stage. It indicated a reaction between iron and carbonaceous materials had obvious effect on wetting behavior between them due to decrease an interfacial energy during the reaction. Mixed alumina powder in the substrate prevented to wetting behavior of iron sample on carbonaceous materials, and they changed their apparent constant contact angles from 115° to 130°. The alumina powder had effects on not only wetting behavior but also reaction between iron and carbonaceous materials.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 55 (6), 1252-1258, 2015

  一般社団法人 日本鉄鋼協会

キーワード

• wettability
• carbon dissolution
• sessile drop method with molten sample injection system
• simulant coke
• molten iron
• carbonaceous material’s substrate

詳細情報

• CRID: 1390001206488663552
• NII論文ID: 130005077646
• DOI: 10.2355/isijinternational.55.1252
• ISSN: 13475460
• ISSN: 09151559
• Web Site: https://www.jstage.jst.go.jp/article/isijinternational/55/6/55_1252/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可