物理化学学报 >> 1998, Vol. 14 >> Issue (07): 645-648.doi: 10.3866/PKU.WHXB19980714

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CaO-MgO-Fe2O3-Al2O3-SiO2玻璃晶化机理

李彬, 隋智通   

  1. 东北大学材料与冶金学院，冶金与材料化学系，沈阳 110006
  • 收稿日期:1997-10-13 修回日期:1997-12-22 发布日期:1998-07-15
  • 通讯作者: 李彬

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

Li Bin, Sui Zhi-Tong   

  1. Department of Metallurgy and Material Chemistry,Northeastern University,Shenyang 110006
  • Received:1997-10-13 Revised:1997-12-22 Published:1998-07-15
  • Contact: Li Bin

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关键词: 混合渣系, 玻璃, 晶化机理, 动力学

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