Record number :
1383192
Title of article :
Crystallization behavior of glass ceramics prepared from the mixture of nickel slag, blast furnace slag and quartz sand
Author/Authors :
Wang، نويسنده , , Zhong-jie and Ni، نويسنده , , Wen and Jia، نويسنده , , Yan and Zhu، نويسنده , , Li-ping and Huang، نويسنده , , Xiao-yan، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
5
From page :
1554
To page :
1558
Abstract :
The purpose of this paper was to investigate the crystallization process of glass ceramics prepared from a mixture which was composed of nickel slag, blast furnace slag and a small amount of quartz sand. First, the parent glass of the mixture was prepared. Then, the glass ceramics were obtained by heat-treating for the parent glass. The crystallization behavior was studied by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and field emission scanning electron microscope (FESEM). A large number of tiny spherical crystals were observed when the glass was heated up to 700 °C. Subsequently, the radial crystals were observed when the glass was heated up to 820 °C. By XRD analyzing, the spherical crystals and radial crystals were likely to be the crystals of diopside (CaMg(Si,Al,Fe)2O6) and hedenbergite (CaFe(Si,Al,Fe)2O6). The crystallization temperature was 860 °C and the final crystalline phases were identified to be diopside and hedenbergite. In addition, the activation energy of crystallization was evaluated by Kissinger method.
Keywords :
Glass ceramics , GLASS , crystallization , wastes
Journal title :
Journal of Non-Crystalline Solids
Link To Document :