Fe_2O_3对Bi_2O_3-B_2O_3-ZnO系统封接玻璃结构及性能的影响  

Effect of Fe_2O_3 content on structure and properties of Bi_2O_3-B_2O_3-ZnO glasses

作　　者：王丽莎[1,2] 田中青[1,2] 童超[1] 袁伟伟[1] 

机构地区：[1]重庆理工大学材料科学与工程学院,重庆400054 [2]特种焊接材料与技术重庆市高校工程研究中心(重庆理工大学),重庆400054

出　　处：《电子元件与材料》2016年第7期12-15,共4页Electronic Components And Materials

基　　金：重庆市科技攻关重点项目(No.cstc2012gg-yyjs B50002)

摘　　要：采用熔融冷却的方法制备了(40–x)Bi_2O_3-30B_2O_3-30Zn O-x Fe_2O_3(0≤x≤10)系统玻璃。研究了Fe_2O_3取代Bi_2O_3对Bi_2O_3-B_2O_3-Zn O系统玻璃结构、玻璃化转变温度(t_g)、初始析晶温度(t_c)、热稳定性、热膨胀系数(α)及化学稳定性的影响。红外光谱(FTIR)结果表明,Fe2O3以网络修饰体存在于玻璃结构间隙,增强了玻璃结构,玻璃密度减小。随着Fe_2O_3含量的增加,t_g、t_c逐渐升高,玻璃的热稳定性有所降低。α从8.2×10^(–6)℃^(–1)减小至7.4×10^(–6)℃^(–1),玻璃的软化点(t_s)逐渐从439℃升高到486℃。引入Fe_2O_3后,玻璃的化学稳定性提高。（40-x）Bi2O3-30B2O3-30ZnO-xFe2O3 （0 ≤ x ≤ 10） glasses were prepared by melt-quenching method. The effect of the substitution of Fe2O3 for Bi2O3 on the structure, transition temperature（tg）, crystallization temperature（tc）, thermal stability, chemical stability, and coefficient of thermal expansion of glasses were investigated. The Fourier transform infrared spectroscopy （FTIR） result reveal that Fe2O3 acts as network modifier in the network structure of Bi2O3-B2O3-ZnO-Fe2O3 glasses, which strengthens the glass structure and decrease the density. Thermal stability of the glass decrease with increasing Fe2O3 contents, whereas the tendencies of the tg and tc vary contrarily. The coefficient of thermal expansion decrease from 8.2×10^-6℃^-1 to 7.4×10^-6℃^-1 and the soft temperature increases from 439 ℃ to 486 ℃. Chemical stability is improved when Bi2O3 is substituted by Fe2O3.

关 键 词：氧化铁 Bi2O3-B2O3-ZnO玻璃 封接玻璃 结构 热性能 化学稳定性 

分 类 号：TN804[电子电信—信息与通信工程]