硅酸盐学报2017，Vol.45Issue(7)：948-954,7.DOI:10.14062/j.issn.0454-5648.2017.07.09
立方相白榴石的合成与稳定
Synthesis and Stabilization of Cubic Leucite
摘要
Abstract
The cubic leucite stabilized at room temperature was synthesized by a solid-state reaction method. The effects of amount of Cs2O, heat treatment temperature and soaking time on the formation and stability of cubic leucite were investigated. The microstructure of leucite was determined by scanning electron microscopy. The coefficient of thermal expansion (CTE) of the synthesized cubic leucite was measured by a thermal dilatometric analyzer. The results show that when a proper amount of CsNO3 is added into the chemical composition of leucite and heat treated for a certain time, cubic leucite can be stabilized at room temperature after a part of K2O is replaced by Cs2O. The average CTE of the stabilized cubic leucite samples at 30–700 ℃ is about 17.3×10–6/℃, which is apparently lower than that of the tetragonal leucite.关键词
立方相白榴石/氧化铯/热处理温度/保温时间/热膨胀系数Key words
cubic leucite/cesium oxide/heat treatment temperature/soaking time/coefficient of thermal expansion分类
化学工程引用本文复制引用
黄丽婷,刘洋,彭诚,吴建青..立方相白榴石的合成与稳定[J].硅酸盐学报,2017,45(7):948-954,7.基金项目
国家自然科学基金(51472092)资助项目. （51472092）
