掺Sm_2O_3的P_2O_5-BaO-Al_2O_3玻璃的形成及部分光学性能

Formation and properties of P_2O_5-BaO-Al_2O_3 system glasses Sm_2O_3 doped

随着信息技术、激光技术和军事技术的快速发展,各种功能玻璃材料的研究受到了科研工作者的极大关注。采用两步熔融法观察了空白试样和掺加Sm2O3 的玻璃形成区,结果表明随着稀土含量的增加,形成区缩小,Sm2O3 的含量不能>15%mol;通过红外光谱仪和分光光度计研究了玻璃的结构和吸收谱线,结果显示:随 Al2O3 含量增加,[PO3-4 ]基团的振动特征吸收峰逐渐缩小直至消失,同时随稀土含量的增加出现尖锐的P—O—Sm键振动吸收峰;吸收光谱中吸收峰强度随稀土含量增加逐步增强,透过率下降。

With the rapid development of communication technology, laser technology and military technology, the study of functional glasses materials was noticed by research personnel in the world. The forming-regions of blank sample glasses and Sm2O3 doped glasses were studied by two step melting method. As a result, the forming regions would shrink with the increasing of rare earth content and the content of Sm2O3 was controlled in 15 mol%; the structure and absorption spectrum was study by infra-red spectrum and spectrophotometer. The experimental results provided the characteristic absorption peak of [PO43-] unit was shrunk gradually and then disappeared with the increasing of Al2O3. At the same time, with the increasing of rare earth content there were obvious absorption peak of P-O-Sm in the absorption spectrum, the intensity of absorption peak was enhanced and transmittance.