Eu^(3+)掺杂Na_2O-Nb_2O_5-SiO_2透明玻璃陶瓷的制备与表征  

Preparation and characterization of Eu^(3+) doped Na_2O-Nb_2O_5-SiO_2 transparent glass-ceramics

作　　者：宋琼[1,2] 张洪波[1] 邵晶[1] 朱晓薇[2] 邹翔宇[1] 韦钦磊 邓爽[1] 江莉梅 王轶敏[1] 魏艳玲[1,2] 苏春辉[1,3] 

机构地区：[1]长春理工大学材料科学与工程学院,长春130022 [2]吉林工程技术师范学院食品工程学院,长春130052 [3]长春师范大学,长春130032

出　　处：《功能材料》2014年第17期17036-17039,共4页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2011AA030204);吉林省科技厅重点研究资助项目(20120341)

摘　　要：采用高温熔融退火法制备出Na2O-Nb2O5-SiO2为基质的掺铕铌酸盐玻璃,并通过两步热处理制备出含有NaNbO3纳米晶相的透明玻璃陶瓷。采用差热分析、X射线衍射、扫描电镜、分光光度计和荧光光谱仪对样品进行了表征。研究表明,铕掺杂铌酸盐基质玻璃具有良好的结晶性,其成核温度为715℃,成核时间为2 h,析晶温度为950℃,析晶时间为2 h;经SEM分析,粒子直径为40~50 nm。该玻璃陶瓷在近红外光区的透过率可达80%。荧光光谱显示,Eu3+∶Na2O-Nb2O5-SiO2玻璃陶瓷在393 nm激发下于614 nm处存在较强发射峰,较基质玻璃有了极大的提高。The Eu3 ＋-doped Na2 O-Nb2 O 5-SiO 2 matrix glass were prepared by the high temperature melt annealing method.The transparent glass ceramics containing nanocrystalline sodium niobate were prepared by the heat treatment of two-stage.Samples were characterized by differential thermal analysis,X-ray diffraction, scanning electron microscope,spectrophotometer and fluorescence spectrophotometer.The results show that Eu3 ＋-doped matrix glass-ceramics containing has fine crystallinity.Nucleation temperature was 715 ℃,the nucleation time was 2 h,crystallization temperature was 950 ℃,crystallization time was 2 h.The particle diameter was 40-50 nm by SEM analysis.The transmittance of the glass ceramics can be up to 80% in the visible area. Fluorescence spectra showed that the glass-ceramics has strong emission peak at 614 nm by the excitation wavelength 393 nm.The glass-ceramics was improved greatly compared to the martix glass.

关 键 词：玻璃陶瓷 发光 NaNbO3 铕掺杂 

分 类 号：TU502.4[建筑科学—建筑技术科学]