中文摘要：

采用高温熔融-退火法制备了一系列Bi2O3-B2O3二元系统玻璃，系统研究了不同Bi／B摩尔比下B2O3和Bi2O3在玻璃网络结构中的竞争机制，重点探讨了组成对铋酸盐玻璃光学和结构性能的影响。通过吸收光谱和Raman光谱分析了Bi2O3-B2O3二元系统玻璃的网络形成机理，测试了玻璃的密度和线性折射率。结果表明：Bi^3＋和B^3＋均为玻璃网络形成体，Raman光谱以600cm^-1’为中心，其附近的Raman信号强度发生的有规律性变化：低能量区的Raman峰与玻璃中引入的铋离子有关，而高能区的Raman峰与玻璃中的硼氧结构体有关。

英文摘要：

A series of Bi2O3-B2O3 bismuthate glasses were prepared by melt-anneal method. We investigate the oxygen competi- tion mechanism between B2O3 and Bi2O3 with different Bi/B mole ratio, and mainly discuss the dependence of glass composition upon their structural and optical properties. The formation of vitreous network of Bi2O3-B2O3 binary glasses were analyzed by absorption and Raman spectra, and their density, refractive index were measured. The results show that both of Bi^3＋ and B^3＋ are glass formers; Raman intensity shows an evident variation centered at 600 cm^-1 Raman peaks in low-energy band are associated with bismuth ions introduced to the glass medium, while Raman peaks in high-energy band are associated with the boron-oxygen structures.