摘要
Glasses based on Sm3+ doped zinc fluoroborate were synthesized and characterized. Formations of glasses were investigated in the 30 ZnF2-20 TeO2-(50-x)B2O3-x Sm2O3 matrix. Fast quenching and adequate heat treatment are required to prevent melt crystallization and to diminish thermal stress, which result in an efficient amorphous material. The differential scanning calorimetry(DSC), scanning electron microscopy(SEM), energy dispersive X-ray analysis(EDAX), X-ray photoelectron spectroscopy(XPS) were employed to record, calculate, measure and analyze the stability, density and refractive index of the glass samples with different concentrations of Sm3+ ranging between 0 to 2.5%(mass fraction). XPS result shows the values of core-level binding energy(Zn 3s, Sm 4d, Te 3d, B 1s, O 1s and F 1s) of(ZnF2-TeO2-B2O3-Sm2O3) glass matrix and indicates the good fusibility of the present glass samples. Density of the glass samples increases as dopant concentration increases and glass transition temperature tg ranges between 395 °C and 420 °C.
合成Sm3+掺杂含锌氟硼酸盐玻璃并对其进行表征。研究30ZnF2-20TeO2-(50-x)B2O3-x Sm2O3的玻璃形成能力。为防止熔体结晶和消除热应力,以得到非晶材料,必须对材料进行快速淬火和适当的热处理。采用DSC、SEM、EDAX、XPS研究含不同Sm3+浓度(0-2.5%,质量分数)玻璃样品的稳定性、密度和折射率。采用XPS对ZnF2-TeO2-B2O3-Sm2O3基玻璃的内层电子结合能(Zn 3s,Sm 4d,Te 3d,B 1s,O 1s和F1s)进行分析,结果表明该玻璃样品具有良好的可熔性。玻璃样品的密度随掺杂剂浓度的增加而增加,玻璃转变温度tg在395~420°C之间变化。
基金
Project supported by a grant-in-aid for a scientific research from the Department of Atomic Energy(DAE)-Board of Research in Nuclear Science(BRNS)of the Government of India
