硅酸盐通报2013，Vol.32Issue(6)：1022-1025,4.
(Na2O-Al2O3)/B2O3对高硼硅酸盐玻璃粘度和热学性能的影响
Influence of (Na2O-Al2O3)/B2O3 on Viscosity and Thermal Properties of Silica-rich Borosilicate Glasses
何峰 1平财明 1郑媛媛 1乔勇2
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
- 2. 秦皇岛玻璃工业研究设计院,秦皇岛066004
- 折叠
摘要
Abstract
Silica-rich sodium borosilicate glasses with varying R' values have been prepared using conventional melt quenching method,where R' represents the ratio of (Na2O-Al2O3) and B2O3.The structure and properties have been investigated by the FTIR spectra,rotating crucible viscometer and thermal expanse dilatometer.The results show that the viscosity dependence of temperature is accord with Arrhenius law in the high temperature range.The non-bridging oxygen increases due to the increase of R',which leads to obvious decease of high temperature viscosity and melting temperature.Thermal expanse coefficient increases linearly with R' when R' exceeds 0.5,and the glass transformation temperature increases to 590 ℃.The fraction of [BO3] and [BO4] and the integrity of Si-O network are controlled mainly by R',then decide properties of borosilicate glasses.关键词
高硼硅玻璃/R’值/粘度/热膨胀Key words
Silica-rich borosilicate glass /R' value / Viscosity / Thermal expansion分类
化学化工引用本文复制引用
何峰,平财明,郑媛媛,乔勇..(Na2O-Al2O3)/B2O3对高硼硅酸盐玻璃粘度和热学性能的影响[J].硅酸盐通报,2013,32(6):1022-1025,4.
