Al_(2)O_(3)/SiO_(2)对铝硼硅酸盐玻璃结构与性能的影响  

Effect of Al_(2)O_(3)/SiO_(2) on the Structure and Properties of Aluminum Borosilicate Glass

作　　者：青礼平 韦奔 肖子凡 平文亮 陈峰 钱奇 Qing Liping;Wei Ben;Xiao Zifan;Ping Wenliang;Chen Feng;Qian Qi(Qingyuan CSG Energy-saving New Materials Co.,Ltd.,Guangdong,511650;School of Materials Science and Engineering,South China University of Technology,Guangdong,510640)

机构地区：[1]清远南玻节能新材料有限公司,广东511650 [2]华南理工大学材料科学与工程学院,广东510640

出　　处：《当代化工研究》2023年第23期54-56,共3页Modern Chemical Research

摘　　要：采用高温熔融法制备了铝硼硅酸盐玻璃。通过改变玻璃组成中Al_(2)O_(3)/SiO_(2)比,研究了玻璃组成对玻璃性能的影响。通过光电子能谱(XPS)和核磁共振波谱(NMR)分析了玻璃的结构。结果显示,在Al离子多的玻璃中,Al离子主要形成[AlO_(4)]结构和少量五配位[AlO_(5)]、六配位铝[AlO_(6)]结构,Si离子主要形成Q^(4)结构;在Si离子多的玻璃中,Al离子主要形成[AlO_(4)]结构,Si离子主要形成Q^(4)和Q^(3)结构。随着Al_(2)O_(3)/SiO_(2)比的增大,玻璃中桥氧(BO)数减少,形成[BO_(4)]和[BO_(3)]构成的硼氧环结构。这些玻璃结构的变化导致玻璃的热膨胀系数、玻璃转变温度和玻璃软化温度随着Al_(2)O_(3)/SiO_(2)比的改变而变化。Aluminum borosilicate glass was prepared by high-temperature melting method.The effect of glass composition on glass properties was studied by changing the Al_(2)O_(3)/SiO_(2) ratio in glass composition.The structure of the glass was analyzed by photoelectron spectroscopy(XPS)and nuclear magnetic resonance spectroscopy(NMR).The results show that in glasses with high Al ions,Al ions mainly form[AlO_(4)]structures and a small amount of penta coordinated[AlO_(5)]and hexa coordinated aluminum[AlO_(6)]structures,while Si ions mainly form Q^(4) structures;In glass with high Si ions,Al ions mainly form[AlO_(4)]structures,while Si ions mainly form Q^(4) and Q^(3) structures.As the Al_(2)O_(3)/SiO_(2) ratio increases,the number of bridging oxygen(BO)in the glass decreases,forming a boron oxide ring structure composed of[BO_(4)]and[BO_(3)].These changes in glass structure result in changes in the thermal expansion coefficient,glass transition temperature,and glass softening temperature of the glass as the Al_(2)O_(3)/SiO_(2) ratio changes.

关 键 词：铝硼硅酸盐玻璃 玻璃结构 玻璃性能 

分 类 号：TQ171.71[化学工程—玻璃工业]