无机材料学报2012，Vol.27Issue(2)：191-194,4.DOI:10.3724/SP.J.1077.2012.00191
ZnO和CaO含量对CaO-Al2O3-SiO2系泡沫微晶玻璃析晶与发泡的影响
Influence of CaO and ZnO Content on the Crystallization and Foaming of CaO-Al2O3-SiO2 Glass-ceramics
徐博 1曹建尉 2梁开明1
作者信息
- 1. 清华大学 材料科学与工程系,北京100084
- 2. 清华大学 化学系,北京100084
- 折叠
摘要
Abstract
CaO-Al2O3-SiO2 system glass were used to produce foam glass-ceramics with high performance. Influence of ZnO and CaO contents on the crystallization and foaming behavior of CaO-Al2O3-SiO2 glass, were investigated using graphite as foaming agent. Addition of ZnO can suppress the crystallization of pseudowollastonite, improve the sintering of the mixture of glass powder and foaming agent, and reduce the combustion-loss of foaming agent at low temperature. Further addition of CaO leads to higher crystallinity, as well as higher glass-viscosity, which will hamper the foaming process and get poorer foaming ability. 18wt% CaO and 6wt% ZnO in CaO-Al2O3-SiO2 glass are helpful to produce foam glass ceramics with high porosity at the sintering temperature of 1000°C.关键词
泡沫微晶玻璃/硅灰石/假硅灰石Key words
foam glass ceramics/ wollastonite/ pseudowollastonite分类
通用工业技术引用本文复制引用
徐博,曹建尉,梁开明..ZnO和CaO含量对CaO-Al2O3-SiO2系泡沫微晶玻璃析晶与发泡的影响[J].无机材料学报,2012,27(2):191-194,4.
