硅酸盐通报2017，Vol.36Issue(11)：3913-3919,7.
Al/Si比对SiO2-Al2O3-MgO系玻璃结构和性能的影响
Effect of Al/Si on Structure and Properties of SiO2-Al2O3-MgO Glass
叶时迁 1何峰 1陈剑 1杨虎 1刘小青 1谢峻林1
作者信息
- 1. 武汉理工大学硅酸盐建筑材料国家重点实验室,武汉 430070
- 折叠
摘要
Abstract
SiO2-Al2O3-MgO glass is used to prepare high modulus glass fiber for its high strength and high modulus of elasticity. The SiO2-Al2O3-MgO based glasses with different Al/Si ratios were prepared by melt cooling method,and the structure and properties of the glass were studied. Infrared spectral analysis showes that the glass network structure is composed of [AlO4 ]and [SiO4 ]. With the increase of Al/Si ratio,the content of [AlO4 ]remaines unchanged,and the content of [AlO6 ]increases gradually. DSC analysis showes that the glass transition point Tg and nucleation temperature Tx increases with the increase of the Al/Si ratio,and the glass crystallization tendency becomes stronger. The thermal expansion analysis shows that the thermal expansion coefficient of glass increases firstly and then decreases with the increase of Al/Si ratio. The results of physical and mechanical properties are as follows:with the increase of Al/Si ratio,the density and elastic modulus increase as well,while the bending strength and the Vickers hardness decrease continuously.关键词
SiO2-Al2O3-MgO玻璃/玻璃结构/玻璃性能/Al/Si比Key words
SiO2-Al2O3-MgO glass/glass structure/glass property/Al/Si ratio分类
化学化工引用本文复制引用
叶时迁,何峰,陈剑,杨虎,刘小青,谢峻林..Al/Si比对SiO2-Al2O3-MgO系玻璃结构和性能的影响[J].硅酸盐通报,2017,36(11):3913-3919,7.
