红外光导纤维材料的研究——Ⅴ.ZrF₄-BaF₂-YF₃系玻璃

红外光导纤维材料的研究——Ⅴ.ZrF 4 -BaF 2 -YF 3 系玻璃 STUDY OF MATERIALS FOR INFRARED OPTICAL FIBRES V. Fluoride giasses in the system ZrF 4 -BaF 2 -YF 3 张克立 first-author 袁启华 夏幽兰 文明达 刘继德 本文报导了ZrF 4 —BaF 2 —YF 3 系氟化物玻璃的合成和性质。给出了玻璃的成玻范围和特征温度T a 、T c 、T f 。组成为61ZrF 4 —31BaF 2 —8YF 3 （mol%）的玻璃,其T a 为324℃、T c 为387℃、T f ,为580℃。引入第四组分,如BiF 3 、PbF 2 、AlF 3 可抑制析晶,从而改善玻璃的形成能力。玻璃的透光波长可达7μm。掺入BiF 3 或PbF 2 增大玻璃的折射率,掺入AlF 3 则降低折射率。该系统玻璃是一类在红外传输和低损耗光纤维方面具有潜在应用的材材。 The synthesis and properties of fluoride glasses in the system ZrF 4 —BaF 2 —YF 3 are reported. The limits of the glassy domain and the eharacteristie temperatures T q 、T c 、T f are given. In a typical composition 61ZrF 4 —31 BaF 2 —8YF 3 （mol%）, T q occurs at 324℃、T o at 387℃ and T f at 580℃. Addition of fluorides of other elements, such as BiF 3 、PbF 2 and、AIF 3 prevents erystallization, then improves glass formation. Optical measurements show that these glasses transmit wavelongths up to 7 μm. Doping with BiF 3 or PbF 2 increases the refractive index, but with AlF 3 decreases the refractive index. The glasses appear to be a class of vitreous materials with petential applications for I. R. transmission and low-loss optical fibres. 1985-03-01 2021-04-01 3