摘要
本文采用拉曼、红外、径向分布函数及可见光谱分析了P_2O_5-Nb_2O_5-Li_2O三元系统玻璃的结构及铌离子价态,指出10Nb_2O_5·xP_2O_5·(90-x)Li_2O(x=40,45,50,55)系列玻璃中随x增加玻璃颜色由浅金黄变成蓝色,并不是由于铌离子配位变化引起的,而是由于Nb^(3+)的逐渐增多所致,并对变色机理进行了探讨。
Raman、IR spectra、RDF and Visible spectrum are used to study theglass structure and the valence state of niobium ions, and for 10Nb_2O_5xP_2O_5·(90-x)Li_2O(x=40, 45, 50, 55) system glasses, it was known that theglass colour changing from Light gold-yellow to blue with x increasing isaroused by the Nb^(3+) ion increasing, not by the change of niobium ion coor-dination. The Colour-changing mechanism was studied.
