Mechanism of phase separation in BFS (blast furnace slag) glass phase

被引：0
|
作者：
LI Yu1
2 School of Engineering and Computer Science
机构：
来源：
Science China Technological Sciences | 2011年 / 54卷 / 01期
基金：
中国国家自然科学基金;
关键词：
blast furnace slag (BFS); phase separation; glass phase; requirement; melilite structure;
D O I：
暂无
中图分类号：
TQ171.1 [基础理论];
学科分类号：
0805 ; 080502 ;
摘要：
XRD,TEM,ED,and NMR analyzed four types of blast furnace slags (BFS) with different structures in this paper. The composition requirement for phase separation in BFS glass phase was then put forward,that is the composition of slag locates in the coexisting phase region of melilite and any silicate mineral with Q0 units. The special structure of melilite units,a 5-membered ring with high degree of polymerization (DOP),plays a key role in the formation of phase separation. In BFS system,one with chemical composition of larger ratio of (CaO + MgO/(SiO2 + Al2O3) would be more promising to meet the requirement for phase separation.
引用
收藏
页码：105 / 109
页数：5
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