Preparation of glass-ceramics from molten blast furnace slag

被引：0

作者：

Xu, Ying ^{[1
]}

Zhang, Yu-Zhu ^{[2
]}

Lu, Xiang ^{[1
]}

机构：

[1] College of Material Science and Engineering, North China University of Science and Technology, Tangshan

[2] College of Metallurgy and Energy, North China University of Science and Technology, Tangshan

来源：

Gongcheng Kexue Xuebao/Chinese Journal of Engineering | 2015年 / 37卷 / 05期

关键词：

Blast furnace slag; Crystal growth; Glass-ceramics; Heat treatment; Mechanical properties; Waste utilization;

D O I：

10.13374/j.issn2095-9389.2015.05.015

中图分类号：

学科分类号：

摘要：

Basic glass with stable properties was prepared from molten blast furnace slag by using the melting method. The heat treatment regime of glass-ceramics was determined by differential thermal analysis of the basic glass. Optimum heat treatment parameters were selected and the crystal growth pattern of glass-ceramics was analyzed by X-ray diffraction and scanning electron microscopy. The results show that the optimum heat treatment parameters of glass-ceramics are the nucleation temperature of 850 ℃ for 1.5 h and the crystallization temperature of 935 ℃ for 1 h. The crystallization grows from the surface to interior gradually. The mechanical properties of the prepared glass-ceramics, such as bending strength, acid and alkali resistance, and hardness, are better than those of ordinary marble. ©, 2015 All right reserved.

引用

页码：633 / 637

页数：4

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