Effect of Structure on Refractive Index for SiO2-B2O3-Ta2O5-ZrO2-Na2O System Glass

摘要：

　　The relationship between structure and refractive index for SiO2-B2O3-Ta2Os-ZrO2-Na2O system glasses was investigated via Raman spectrum and V-block technology.The results showed that refractive index of the borosilicate glasses is mainly influenced by network structure such as planar BO3 triangle, BO4 tetrahedron and SiO4 tetrahedron.Refractive index nd decreases from 1.629 to 1.616 when B2O3 content increases from 15 mol% to 50 mol%.Na2O component has a strong preference to provide non-bridging oxygen (NBO) atoms, which not only promotes the conversion of BO3 to BO4 unit but also depolymerizes the network structure.The refractive index has the highest value, nd =1.6264, when Na2O content reaches to 28 mol%.Both ZrO2 and Ta2O5 can promote structure formation ofborosilicate glasses and make higher connection degree.However, the refractive index increasing with Ta2O5 addition is quicker than that with ZrO2 addition.

关键词： Borosilicate glass Structure Refractive index Raman spectroscopy

作者: Xiao-dian Xu Yan-hang Wang Cheng-kui Zu Peng Zhou

作者单位: China Building Materials Academy, Beijing, PR China

会议类型: 国际会议

会议名称: The 2016 China Functional Materials Technology and Industry Forum (2016中国国际功能材料大会暨第九届中国功能材料及其应用学术会议)

会议地点: 重庆

会议语种:英文

页码: 265-271

在线出版日期: 2016-07-25（万方平台首次上网日期，不代表论文的发表时间）