Characteristics of Agglomeration of Various Inclusion Particles on Molten Steel Surface

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概要

• 論文の詳細を見る

• The behavior of various inclusion particles at inert gas/molten steel interface was "in-situ" studied with a confocal scanning laser microscope. Solid CaO-Al2O3 and solid CaO-Al2O3-SiO2 inclusion particles were subjected to quick agglomeration to form clusters which densified and deformed later. Capillary attraction was found responsible for the agglomeration and densification. The capillary effect also operated between solid CaO-Al2O3 inclusion particle and liquid CaO-Al2O3 inclusion particle pairs, making the densification and deformation of the solid inclusion particles much easier. The attraction force was found to be in the range of 10-16- 10-13 N for different particles and extended to a distance of up to 100 μm. However, such capillary attraction was not at all found between liquid CaO-Al2O3-SiO2 inclusion particles. Even when the two liquid particles came in touch, merger took place only after contacting for a while. The merger of liquid CaO-Al2O3 particles was even more difficult for small particles of less than 7μm, but easier for particles larger than 24 μm. These phenomena are discussed in terms of inert gas/oxide inclusions/liquid steel three-phase interfacial interaction.

• 社団法人 日本鉄鋼協会の論文
• 1997-10-15

著者

• SHIBATA Hiroyuki

  Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University

• YIN Hongbin

  Institute for Advanced Materials Processing, Tohoku University

• SUZUKI Mikio

  Institute for Advanced Materials Processing, Tohoku University

• EMI Toshihiko

  Institute for Advanced Materials Processing, Tohoku University

• Shibata H

  Institute For Advanced Materials Processing Tohoku University

• Shibata Hiroyuki

  Institute For Chemical Research Kyoto University

• Yin H

  Univ. Colorado At Boulder Co Usa

• Suzuki M

  Institute For Advanced Materials Processing Tohoku University

• Emi Toshihiko

  Institute For Advanced Materials Processing Tohoku University

• Shibata Hiroyuki

  Institute For Advanced Materials Processing Tohoku University

• Suzuki Mikio

  Institute For Advanced Materials Processing Tohoku University

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