Preparation and Performance of Magneto-optical Glasses Doped with Tb^(3+)/Dy^(3+)  

作　　者：殷海荣 ZHAO Gaoyang LIU Pan WANG Shunni GUO Hongwei 

机构地区：[1]School of Materials Science and Engineering, Xi'an University of Technology [2]School of Materials Science and Engineering, Shaanxi University of Science and Technology

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2014年第4期684-687,共4页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the International Exchanges and Cooperation Projects(No.2009DFR50520);the Optional Research Project of Shaanxi University of Science and Technology(ZX/11-13);the Scientifi c Research Initial Funding of Shaanxi University of Science and Technology(BJ12-01)

摘　　要：In order to increase the content of rare-earth oxides in magneto-optical glass and improve the Verdet constant, the rare-earth doped ternary Ga2O3-B2O3-SiO2（GBS） system magneto-optical glasses were prepared by the melt quenching technique. The infl uence of Tb3＋ and Dy3＋ ions on the structure of GBS glasses was investigated using FTIR, DSC and Faraday rotations. The experimental results showed that the content of rare-earth oxides in the glasses with the double incorporation of Tb2O3 and Dy2O3 was higher. The crystallization parameter β achieved the maximum 0.48 with Tb3＋/Dy3＋ content of 35mol%. Terbium oxide existed mainly in [TbO3] units in the glasses and [TbO4] units were converted into [TbO3] with increasing Tb2O3 content. As Ga3＋ ion is larger than B3＋ ion in radius, leading to an increasing of the glass network gap and improvement in the ability of accommodating rare earth ions, Verdet constant increased.In order to increase the content of rare-earth oxides in magneto-optical glass and improve the Verdet constant, the rare-earth doped ternary Ga2O3-B2O3-SiO2（GBS） system magneto-optical glasses were prepared by the melt quenching technique. The infl uence of Tb3＋ and Dy3＋ ions on the structure of GBS glasses was investigated using FTIR, DSC and Faraday rotations. The experimental results showed that the content of rare-earth oxides in the glasses with the double incorporation of Tb2O3 and Dy2O3 was higher. The crystallization parameter β achieved the maximum 0.48 with Tb3＋/Dy3＋ content of 35mol%. Terbium oxide existed mainly in [TbO3] units in the glasses and [TbO4] units were converted into [TbO3] with increasing Tb2O3 content. As Ga3＋ ion is larger than B3＋ ion in radius, leading to an increasing of the glass network gap and improvement in the ability of accommodating rare earth ions, Verdet constant increased.

关 键 词：magneto-optical glass faraday rotation rare earth oxide 

分 类 号：TQ171.7[化学工程—玻璃工业]