稀土掺杂BAP玻璃的制备及性能研究

采用UVPC和DSC等测试手段系统研究了稀土Sm2O3掺杂BaO-Al2O3-P2O5(BAP)激光防护玻璃的光谱性能及析晶性能。结果表明:吸收光谱的特征吸收峰强度随Sm2O3含量的增加逐步增强,吸收谱线向两端非均匀展宽,玻璃在1075nm波长处的光密度与稀土含量近似成线性关系,当Sm2O3含量达到17.5mol%时,透过率T<0.03%;随着稀土含量的增加,玻璃的析晶参数β先增后减,玻璃的析晶倾向也随之先下降而后提高,BaO/Al2O3比值的降低可使玻璃的形成能力提高。

Preparation and properties of BAP glass doped with rare earth

With the rapid development of laser technology,the properties of laser protection materials are required more and more highly. The spectra and crystallization property of BAP glass are investigated by UVPC and DSC. The experimental results indicate that the intensity of characteristic absorption peaks is enhanced,the absorption spectrum is broadened to two sides asymmetrically,and there is approximate linear relation between the optical density and Sm2O3 content at 1075nm wavelength for the addition of Sm2O3,when the content of Sm2O3 is 17.5mol% ,the transmission ratio is less than 0.03 % ;the DSC results provided that with increasing Sm2O3 content,the β value increases firstly and then decreases,as a result,the crystallization tendency is lower firstly and then stronger,while the decrease of BaO/Al2O3 ratio changes the network structure and improved the forming ability of glass.