制备了一种新型的氧卤碲酸盐玻璃:(80-x)TeO2-15ZnCl2-xBaO-5NaF(x=30、20、10、0mol%),对玻璃的机械强度、热稳定性、拉曼光谱、紫外吸收光谱、红外透过光谱等特性进行了研究.通过拉曼光谱分析研究了玻璃组分含量的变化对玻璃结构和红外透过性能的影响.结果表明,随着BaO含量的增加,玻璃在红外波段透过率显著增加,并且红外透过截止波长向长波方向移动,本文对这一实验结果进行了机理性的研究探讨.同时,通过在熔制过程中通入高纯O2,以及引入适量的卤化物有效地除去玻璃中的[OH]基团,使玻璃的红外透过性能得到进一步的提高.这种新型的氧卤碲酸盐玻璃在中红外区域有较高的透过(≥80%),中红外波段透过截止波长达6.5μm,是一种红外透过性能优良的光学玻璃材料.
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