Preparation and Spectra Properties of BaO-Al2O3-P2O5-Sm2O3 System Protection Glasses
来源期刊：JOURNAL OF RARE EARTHS2006年增刊第2期
论文作者：Wang Lixi Meng Xianfeng Zhang Qitu Lu Chunhua Xu Zhongzi
Key words：laser protection glass; Sm2O3; phosphate glass; glass forming-region; optical density; rare earths;
Abstract: The forming-regions of phosphate glasses doped with high Sm2O3 contents were studied by two step melting method. The relationship between absorption spectrum and rare earth contents was also discussed. The spectra of BASP glasses were measured by spectrophotometer. The results show that the forming regions will shrink with the increase of Al2O3 and it is difficult to form glass when [PO4]/[AlO4]＜2. The forming regions tend to be a closed elliptical, and the intensity of characteristic absorption peak increases gradually with the increase of Sm2O3, the absorption lines broadens non-uniformly and there is approximate linear relation between optical density at the 1064 nm wavelength and Sm2O3 content.
Wang Lixi1，Meng Xianfeng2，Zhang Qitu1，Lu Chunhua1，Xu Zhongzi1
(1.Materials Science & Technology, Nanjing University of Technology, Nanjing 210009, China;
2.School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China)
Abstract:The forming-regions of phosphate glasses doped with high Sm2O3 contents were studied by two step melting method. The relationship between absorption spectrum and rare earth contents was also discussed. The spectra of BASP glasses were measured by spectrophotometer. The results show that the forming regions will shrink with the increase of Al2O3 and it is difficult to form glass when [PO4]/[AlO4]＜2. The forming regions tend to be a closed elliptical, and the intensity of characteristic absorption peak increases gradually with the increase of Sm2O3, the absorption lines broadens non-uniformly and there is approximate linear relation between optical density at the 1064 nm wavelength and Sm2O3 content.
Key words:laser protection glass; Sm2O3; phosphate glass; glass forming-region; optical density; rare earths;
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