摘要
通过红外光谱分析了Al2O3取代SiO2后硼硅酸盐玻璃结构的变化,测试了玻璃的热膨胀系数和膨胀软化温度,通过扫描电子显微镜分析硼硅酸盐玻璃的分相,并结合X射线能谱分析了富硅相的组成。结果表明:硼硅酸盐玻璃中引入Al2O3后,随着Al2O3取代量的增加,玻璃结构中[BO3]增多,[BO4]减少;玻璃的热膨胀系数增大,转变温度和软化温度提高;硼硅酸盐玻璃中引入Al2O3后对玻璃的分相没有明显的改善作用。
The structure of borosilicate glass was analyzed by infrared spectra, the thermal expansion coefficient and expansion sof- tening temperature were measured by dilatometer, the phase separation of glass was investigated by scanning electron microscope and the component of silicon-rich phase was analyzed by X-ray energy dispersive spectroscopy. The results show that [BO3] increases and [BO4] decreases in the glass structure with the increasing of Al2O3 content added into borosilicate glass. The thermal expans...
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2008年第4期544-547,551,共5页
Journal of The Chinese Ceramic Society
基金
湖北省重点攻关(2004AA103B03)资助项目
关键词
硼硅酸盐玻璃
氧化铝
红外光谱
热膨胀系数
分相
borosilicate glass
alumina
infrared spectra
thermal expansion coefficient
phase separation
