摘要
通过FTIR、Raman、27 Al NMR、XRD、DSC等测试方法,研究了ZnO含量对Bi2O3-B2O3-ZnO-SiO2-Al2O3系统低熔点玻璃结构及热性能的影响。结果表明:当ZnO含量小于12wt%时,Zn^2+与自由氧结合形成[ZnO 4]四面体,增强网络结构,玻璃化转变温度增大,热膨胀系数减小;当ZnO含量大于12wt%时,锌氧多面体由四配位[ZnO4]转变为六配位[ZnO6],破坏网络结构,玻璃化转变温度减小,热膨胀系数增大;ZnO含量的提高和热处理温度的升高对玻璃析晶能力没有明显的促进作用。
The effect of ZnO on the structure and thermal properties of low-melting sealing glass(Bi2O3-B2O3-ZnO-SiO2-Al2O3)was investigated by FTIR,Raman,27 Al NMR,XRD and DSC.The results show that when ZnO content is less than 12wt%,Zn^2+combines with free oxygen to form[ZnO4]tetrahedron,enhances the network structure,increases the glass transition temperature,and decreases the coefficient of thermal expansion;when ZnO content is more than 12wt%,the zinc-oxygen polyhedron changes from[ZnO 4]to[ZnO6],destroys the network structure,decreases the glass transition temperature,and increases the coefficient of thermal expansion.The increase of ZnO content and heat treatment temperature has no obvious effect on the crystallization ability of glass.
作者
张兵
何峰
曹秀华
徐佳佳
任海东
谢峻林
钟克菊
刘小青
ZHANG Bing;HE Feng;CAO Xiuhua;XU Jiajia;REN Haidong;XIE Junlin;ZHONG Keju;LIU Xiaoqing(State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China;State Key Laboratory of Advanced Materials and Electronic Components,Zhaoqing 526000,China)
出处
《硅酸盐通报》
CAS
北大核心
2020年第1期283-289,共7页
Bulletin of the Chinese Ceramic Society
基金
新型电子元器件关键材料与工艺国家重点实验室开放课题资助(FH2018sk201)
