文献类型：期刊文献

英文题名：Effect of F content on the structure, viscosity and dielectric properties of SiO2-Al2O3-B2O3-RO-TiO2 glasses

作者：Pu, Zidie[1];Huang, Jianguo[1];Li, Jinfeng[1];Feng, Hao[1];Wang, Xiaoyang[1];Yin, Xiangchun[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, 130 Meilong Rd, Shanghai, Peoples R China

年份：2021

卷号：563

外文期刊名：JOURNAL OF NON-CRYSTALLINE SOLIDS

收录：;EI(收录号：20211510188734);WOS:【SCI-EXPANDED(收录号:WOS:000647700800008)】；

基金：This work was supported by the Project of the National Natural Science Foundation of China (contract grant number 52072123).

语种：英文

外文关键词：Borosilicate glass; Fluorine; Glass structure; High temperature viscosity; Dielectric properties

摘要：The effect of F content on the structure, high-temperature viscosity and dielectric properties was investigated in a borosilicate glass system with SiO2-Al2O3-B2O3-RO-TiO2. Fourier transform infrared spectroscopy (FTIR) and Xray photoelectron spectroscopy (XPS) served to study glass structural changes through peak fitting calculations. The results showed that the addition of F from 0.26 wt% to 0.63 wt% promoted the conversion of the network outer body [BO3] into [BO4] and [AlO6] into [AlO4] during the melting cooling period. The increase of bridging oxygen enhances the integrity of the network structure and improves the dielectric performance at ambient temperature. In the high-temperature stage, the introduction of an appropriate amount of F decrease the viscosity of the liquid, which is beneficial to the homogenization, refining and drawing operations. These results could help elucidate the changes in properties of glass on the addition of F.