绿泥石
霞石
材料科学
微观结构
冶金
陶瓷
相(物质)
结晶
煤矸石
煤
矿物学
化学工程
废物管理
地质学
化学
有机化学
工程类
作者
Mei Yang,Zhixing Guo,Yinsheng Deng,Xueling Xing,Kehui Qiu,Jianping Long,Junfeng Li
出处
期刊:International Journal of Mineral Processing
[Elsevier]
日期:2012-01-01
卷期号:102-103: 112-115
被引量:51
标识
DOI:10.1016/j.minpro.2011.11.004
摘要
For the recycling and exploitation of coal industry wastes, CaO–Al2O3–SiO2 glass ceramics were prepared using up to 70 wt.% coal gangue as the main starting materials. The coal wastes were characterized, and the processing schedule, crystal phases, microstructure and properties of the glass ceramics were investigated. The prepared glass ceramics showed dense and homogeneous microstructure with crystal size of about 4 μm. Crystallization was observed at 1020 °C, producing crystalline gehlenite (Ca2Al2SiO7) as the major phase and nepheline (NaAlSiO4) as the minor phase. The prepared glass ceramics exhibited attractive physical, mechanical and corrosion resistance properties, showing large application potential for construction purposes.
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