首页|Effect of nano-carbon black content on wetting phenomenon of molten steel and alumina-carbon ceramic filter substrates
Effect of nano-carbon black content on wetting phenomenon of molten steel and alumina-carbon ceramic filter substrates
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The effect of nano-carbon black content(0,8 and 12 wt.％)on the wettability of molten steel on A12O3-C substrates was investigated by the sessile drop wetting method at 1500 ℃ under argon atmosphere.At the beginning of the wetting experiment,the contact angle decreased with the increase in nano-carbon black content.As the wetting experiment progressed,FeAl2O4 layer and sheet A12O3 layer were found at the interface between the molten steel and the A12O3-C substrates with 0 and 8 wt.％nano-carbon black content,and the contact angle deceased with time.When the content of nano-carbon black was 12 wt.％,a large number of nano-Al2O3 whiskers were observed,which made the contact angle between the molten steel and A12O3-C substrate become large.Based on the scanning electron microscope and energy dispersive spectrometry results,the formation mechanism of FeAl2O4 layer and A12O3 layer and the interfacial reaction mechanism were proposed.
Jin-wen Song、Wen Yan、Zhe Chen、Ying Liu、Shao-song Hong
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The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China
National-provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China
Jiangsu Sheng Nai New Materials Co.,Ltd.,Taizhou 225503,Jiangsu,China
National Natural Science Foundation of ChinaNatural Science Funds of Hubei Province for Distinguished Young Scholars
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