Preparation and Thermal Stability of Phosphate System Protection Glasses Doped with Rare Earths
来源期刊：JOURNAL OF RARE EARTHS2006年增刊第2期
论文作者：Meng Xianfeng Zhang Qitu Lu Chunhua Xu Zhongzi
Key words：phosphate glasses; Sm2O3; glasses forming region; thermal stability; rare earths;
Abstract: The formation ability and thermal stability of phosphate laser protection glass doped with high Sm2O3 content were discussed. The characteristic temperatures (Tg, Tc, Tm) were measured by DSC and the crystallization parameter β was calculated. The results show that the forming regions would shrink and tend to closed ellipse with increasing of Sm2O3 content. Increasing of BaO/Al2O3 ratio changes the network structure of rare earth glass and improves the thermal stability finally. However, with the increasing of Sm2O3 content, the β increases firstly and then decreases, and finally the thermal stability also increases firstly and then decreases.
Meng Xianfeng1，Zhang Qitu2，Lu Chunhua2，Xu Zhongzi2
(1.School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China;
2.Materials Science & Technology, Nanjing University of Technology, Nanjing 210009, China)
Abstract:The formation ability and thermal stability of phosphate laser protection glass doped with high Sm2O3 content were discussed. The characteristic temperatures (Tg, Tc, Tm) were measured by DSC and the crystallization parameter β was calculated. The results show that the forming regions would shrink and tend to closed ellipse with increasing of Sm2O3 content. Increasing of BaO/Al2O3 ratio changes the network structure of rare earth glass and improves the thermal stability finally. However, with the increasing of Sm2O3 content, the β increases firstly and then decreases, and finally the thermal stability also increases firstly and then decreases.
Key words:phosphate glasses; Sm2O3; glasses forming region; thermal stability; rare earths;
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