【摘要】 以 10MgF2 ·2 0CaF2 ·BaF2 ·10SrF2 ·15YF3·35AlF3氟铝酸盐玻璃为基玻璃 ,用Ba(PO3) 2 替代等摩尔含量的BaF2 ,以改善玻璃的抗失透能力。用差热分析方法研究了Ba(PO3) 2 含量对氟铝酸盐玻璃热性能和析晶动力学的影响。结果表明 :Ba(PO3) 2 含量增加使玻璃转变温度Tg和析晶温度Tx 升高 ,熔化温度降低 ,成玻璃能力增加。在玻璃中加入摩尔分数 (下同 )为 2 %的Ba(PO3) 2 即可获得无析晶的 8mm厚玻璃。另外 ,还给出了含 2 %Ba(PO3) 2 玻璃的透过光谱 ,玻璃的红外透过范围可达 4μm ,该玻璃具有较好的成玻璃性能 ,并有较宽的红外透过范围和高的透过率 ,是一种很有前途的光学玻璃材料更多还原

【Abstract】 In order to improve the ability of glasses against devitrification, Ba（PO₃）₂ was introduced to fluoroaluminate basic glass, which consisting of 10MgF₂·20CaF₂·BaF₂·10SrF₂·15YF₃·35AlF₃, to substitute BaF₂ in the glass. The influences of Ba（PO₃）₂ contents on the properties and crystallization kinetics of glasses were studied by differential thermal analysis technique. The experiment results indicate that more Ba（PO₃）₂ content will increase the T_g and T_x of glasses, reduce melting temperature of glasses and improve also the ability of glass forming. A 8 mm thick glass plate can be obtained with the glass substituted by 2% （in mole, same below） Ba（PO₃）₂. In addition, the transmitting spectrum of glass containing 2% Ba（PO₃）₂ was measured, the infrared transmitting region reaches to 4 μm. This glass is stable, and has a wide infrared transparent region, therefore it is a potential optical glass material.更多还原