B_2O_3对Sm^(3+)透辉石微晶玻璃析晶及发光的影响  

Influence of Boron on the Crystallization and Luminescence Properties of Sm^(3+) Doped Diopside Glass-ceramics

作　　者：田培静[1] 全健[1] 陈珍霞[1] 欧阳舒[1] 

机构地区：[1]武汉理工大学硅酸盐工程教育部重点实验室,武汉430070

出　　处：《武汉理工大学学报》2009年第22期36-39,共4页Journal of Wuhan University of Technology

摘　　要：制备了具有不同硼含量的Sm3+掺杂透辉石系微晶玻璃。采用X射线衍射仪、扫描电子显微镜、荧光光谱仪研究了该微晶玻璃的析晶及发光性能。由XRD、SEM证实,该系统玻璃属表面析晶。随着B2O3的增加,该系统玻璃更加容易分相。且B2O3的增加有助于次晶相方石英的析出。发射与激发光谱表明,B2O3外加量的增多使得微晶玻璃发光强度先增大后减小。Sm3＋ doped CaO-MgO-SiO2 luminescent glass ceramics with different content of B2O3 were prepared by the melt- ing - quenching method. The crystallization and luminescent properties of the glass ceramics were researched by X-ray diffraction, scanning electron microscope and fluorescence spectra. The XRD and SEM results show that the glasses are prone to surface crystallization, and more phase separation is observed in the glass ceramics with more B2O3. With the increase of boron content, the sub-crystalline phase of cristobalite-beta precipitates, the luminescent intensity increases, and then decreases when the content of B2O3 is over 5 % （ in mole）.

关 键 词：微晶玻璃 Sm3+ 透辉石 B2O3 

分 类 号：TQ171.733[化学工程—玻璃工业]