摘要
制备了一系列BaO-MnO-B2O3-SiO2玻璃,通过DIL、XRD、SEM研究了其热膨胀行为、玻璃态转变、析晶行为及其与SS410金属连接极材料之间的反应。结果表明:所得密封玻璃的热膨胀系数约为10×10-6 K-1,与YSZ电解质材料和SS410金属连接极材料较为匹配,所得玻璃在800℃保温10h之后,生成了Ba5Si8O21相为主的微晶玻璃。玻璃的析晶对于密封玻璃与SS410连接极材料之间的化学相容性具有显著影响,析晶之后,玻璃与SS410之间的反应现象减弱。玻璃在N2气氛下进行预析晶处理,形成微晶玻璃之后,与SS410之间的反应显著减少。本研究所得的BaO-MnO-B2O3-SiO2密封玻璃在完成封接之后,在700℃保温100h,能够保持良好的密封效果。
A series of BaO-MnO-B2O3-SiO2 glass was prepared. The thermal expansion behavior, glass transition, crystallization behavior and the interaction with SS410 interconnect material of the glass were studied using DIL, XRD and SEM. The coefficient of thermal expansion（CTE） of the glass is about 10×10^-6K^-1 , which is matched with the CTE of the YSZ electrolyte and the SS410 interconnect material. After annealed at 800 ℃ for 10 h, glass-ceramic consists of Ba5Si8O21 was formed. Crystallization has significant impact on the chemical compatibility between sealing glass and the SS410 interconnect material. After crystallization, the interaction between glass and SS410 was reduced apparently. The pre-crystallization in N2, which formed glass-ceramic phase, reduced the interaction. The BaO-MnO-B2O3-SiO2 sealing glass kept a tight and stable seal after annealed at 700 ℃ for 100 h.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2014年第20期10-12,共3页
Materials Reports
