硅酸盐学报2017，Vol.45Issue(10)：1516-1522,7.DOI:10.14062/j.issn.0454-5648.2017.10.19
Al2O3/SiO2摩尔比对无碱铝硼硅酸盐玻璃黏温特性的影响
Effect of Al2O3/SiO2 Ratio on Temperature Dependence of Viscosity of Alkali-free Boroaluminosilicate Glasses
摘要
Abstract
Alkali-free boroaluminosilicateglasses with different ratios of Al2O3/SiO2 were prepared by high temperature fusion method. The effects of substitution of Al2O3 for SiO2 by fixing mole percent of SiO2 and Al2O3 in alkali-free boro-aluminosilicate glasses on the reference point of viscosity-temperature characteristics such as glass melting temperature,forming temperature, annealing point and strain point were studied. The structure change of these glasses was analyzed by infrared and Raman spectroscopy. The results indicate that the non-bridging oxygens (NBOs) were found decrease in the glass network with an increase in the ratio of n(Al2O3/SiO2). The results indicate that the non-bridging oxygens (NBOs) decreases in the glass network with increasing of n(Al2O3/SiO2). This change results in increasing of the annealing point (Ta) and strain point (Tst) gradually and decreasing of the melting temperature (Tm) and forming temperature (Tf) at high temperature region.关键词
无碱玻璃/铝硼硅酸盐玻璃/铝硅比/玻璃结构/黏温特性Key words
alkali-free glass/boro-aluminosilicate glass/Al2O3/SiO2 ratio/glass structure/viscosity-temperature characteristics分类
化学工程引用本文复制引用
李青,张广涛,李赫然,郑权,王丽红..Al2O3/SiO2摩尔比对无碱铝硼硅酸盐玻璃黏温特性的影响[J].硅酸盐学报,2017,45(10):1516-1522,7.基金项目
国家科技支撑计划(2013BAE03B02-03)项目. （2013BAE03B02-03）
