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【期刊论文】TiO2替代SiO2对含Ti不锈钢连铸保护渣的结晶动力学和结构影响
束奇峰, Zhen Wang, Qifeng Shu, Kuochih Chou
Metallurgical and material transaction B,-0001,():
-1年11月30日
Crystallization kinetics and the structure of mold fluxes with SiO2 being substituted by 0, 5, and 10 pct TiO2 were studied by differential thermal analysis technique and Raman spectroscopy, respectively, to explore the effect of TiO2 on the crystallization behavior of the slag. Crystallization kinetics analysis shows that the activation energy for crystal growth increases with the increase of TiO2 substitution, implying that TiO2 substitution for SiO2 in mold fluxes produces negative effects on crystal growth and retards the crystallization process. Raman spectral study indicates that TiO2 enters the system mainly in the form of [TiO4] in monomer structure unit, and simultaneously, there appear relatively small amounts of [TiO6] structure unit. The introduction of TiO2 leads to a decrease of the dimer and chain Si-O-Si structure unit (Q1 and Q2).
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束奇峰
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-1年11月30日
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【期刊论文】A Viscosity Estimation Model for Molten Slags in Al2O3-CaO-MgO-SiO2 System
束奇峰
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束奇峰
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束奇峰
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