Assimilation Behavior of Calcium Ferrite and Calcium Diferrite with Sintered Al₂O₃ and MgO

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• 作者：Hongming Long ; Xuejian Wu ; Tiejun Chun…
• 刊名：Metallurgical and Materials Transactions B
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：47
• 期：5
• 页码：2830-2836
• 全文大小：1,989 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Manufacturing, Machines and Tools
  Metallic Materials
  Operating Procedures and Materials Treatment
  Characterization and Evaluation Materials
  Numerical and Computational Methods in Engineering
  
• 出版者：Springer Boston
• ISSN：1543-1916
• 卷排序：47

文摘

In this study, the assimilation behaviors between calcium ferrite (CF), calcium diferrite (CF₂) and sintered Al₂O₃, and MgO were explored by an improved sessile drop technique, and the interfacial microstructure was discussed. The results indicated that the apparent contact angles of CF slag on Al₂O₃ and MgO substrate were 15.7 and 5.5 deg, and the apparent contact angles of CF₂ slag on Al₂O₃ and MgO substrate were 17.9 and 7.2 deg, respectively. Namely, CF and CF₂ slag were wetting well with Al₂O₃ and MgO substrate. The dissolution of Al₂O₃ substrate into the CF and CF₂ slag was found to be the driving force of the wetting process. For the CF-MgO and CF₂-MgO substrate systems, CaO contrarily distributed with MgO after wetting. For the CF-MgO system, after wetting, the slag was composed of CF and C₂F, and most of the Fe₂O₃ permeated into substrate and formed two permeating layers.