CaO-MgO-Fe2O3-Al2O3-SiO2玻璃晶化机理

doi:10.3866/PKU.WHXB19980714

Acta Phys. -Chim. Sin. ›› 1998, Vol. 14 ›› Issue (07): 645-648.doi: 10.3866/PKU.WHXB19980714

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Glass Crystallization Mechanism of CaO-MgO-Fe₂O₃-Al₂O₃-SiO₂ Slag

Li Bin, Sui Zhi-Tong

Department of Metallurgy and Material Chemistry,Northeastern University,Shenyang 110006

Received:1997-10-13 Revised:1997-12-22 Published:1998-07-15
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Abstract

Abstract:

The glass-ceramics of CaO-MgO-Fe2O3-Al2O3-SiO2 slag was prepared. Crystallization kinetics parameter and activation energy of the system were investigated by the kinetics theory and DTA technique. The crystallization mechanism of two-dimensional crystal growth and m=n=2 was determined. The activation energy calculated was 272.6 kJ•mol-1. The microstructure obtained by the SEM technique indicated that the mechanism of crystal growth is in good agreement with the result predicted.

Key words: Slag, Glass, Crystallization mechanism, Kinetics

Li Bin, Sui Zhi-Tong. Glass Crystallization Mechanism of CaO-MgO-Fe₂O₃-Al₂O₃-SiO₂ Slag[J]. Acta Phys. -Chim. Sin. 1998, 14(07), 645-648. doi: 10.3866/PKU.WHXB19980714

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Glass Crystallization Mechanism of CaO-MgO-Fe₂O₃-Al₂O₃-SiO₂ Slag

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Glass Crystallization Mechanism of CaO-MgO-Fe₂O₃-Al₂O₃-SiO₂ Slag