Effect of silica on crystallization process of calcium ferrite: thermodynamic and kinetic analysis
Journal of Iron and Steel Research International(2024)
Abstract
SiO2 is the main component of gangue in sinters and a crucial constituent in the formation of the SiO2–Fe2O3–CaO (SFC) system. The non-isothermal crystallization kinetics of the SFC system were investigated using differential scanning calorimetry. The crystallization process of SFC was studied under different cooling rates (5, 10, 15, and 20 K/min), and the crystalline phases and microstructures of the SFC crystals were verified through X-ray diffraction and scanning electron microscopy. The results indicate that when the SiO2 content is 2 wt.
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Key words
Silica,Calcium ferrite,Sinter,CaO–Fe2O3–SiO2 system,Differential scanning calorimetry,Crystallization
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