Effect of Reactive Gas on the Wetting of Molten Iron-Carbon Alloy on Ceramic Substrates
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概要
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Wetting phenomena have occupied an important position in the field of high temperature metal processing for a long time. The difficulties encountered in the high temperature experiments—especially the separation of one effect from another—have frustrated efforts to achieve a full understanding of the dynamic wetting phenomena which are present in many metallurgical applications.In this work the sessile drop method is used to study the effect of reactive gases on the dynamic wetting angle of a binary iron–carbon mixture on a ceramic substrate. The use of such a mixture enables the effect of dynamic gas–liquid reactions to be separated from the solid–liquid interactions. An experiment performed with SO2, O2 and N2 gases at 1773 K proved that liquid surface tension can drop dramatically but the changes in wetting angle are only minor ones. It is also noted that the relative change in the volume of the droplet can give information about carbon boil and collapsing surface tension phenomena upon comparison with changes in the wetting angle of the droplet.
- 社団法人 日本鉄鋼協会の論文
- 2010-03-15
著者
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Harkki Jouko
Laboratory Of Process Metallurgy University Of Oulu
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Harkki Jouko
Laboratory Of Process Metallurgy Department Of Environmental And Process Engineering
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Fabritius Timo
Laboratory Of Process Metallugy University Of Oulu
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MATTILA Olli
Laboratory of Process Metallurgy, University of Oulu
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KURIKKALA Jari
Laboratory of Process Metallurgy, University of Oulu
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Mattila Olli
Laboratory Of Process Metallurgy University Of Oulu
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Kurikkala Jari
Laboratory Of Process Metallurgy University Of Oulu
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FABRITIUS Timo
University of Oulu, Laboratory of Process Metallurgy
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MATTILA Olli
Ruukki Metals Oy
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