以10MgF2-20CaF2-10SrF2-10BaF2-15YF3-35AlF3(摩尔百分数)氟铝酸盐玻璃为基本组成,在玻璃中引入不同含量的ZrF_4,同时对其它组成进行适当调整,制得了厚度8mm无可见析晶的氟化物玻璃。利用差热分析(DTA)技术研究了ZrF4对玻璃形成能力和玻璃析晶动力学的影响,结果表明,少量的ZrF4可以提高玻璃的抗失透能力,过量的ZrF4会降低玻璃形成能力;ZrF4的最佳含量范围为7.3～11.4mol％。根据测得的玻璃的红外透过光谱显示,该玻璃具有良好的透红外光性能。
Varying contents of ZrF4 were incorporated into the fluoroaluminate base-glass having a composition of 10MgF2-
20CaF2-10SrF2-BaF2-15YF3-35AlF3(molar percent), contents of other components being adjusted properly, fluoride glasses having no visible
crystallization were obtained, these glasses can reach to 8mm thick. The content influences of ZrF4 on the ability to form glass and kinetics of
crystallization were investigated by differential thermal analysis (DTA) technique. The results indicate that a small amount of ZrF4 will improve
the anti-devitrification ability of glasses, but too much ZrF4 maybe depress the ability to form glass. The best content range of ZrF4 is from
7.3% to 11.4%. Moreover, the measured infrared transmitting spectra prove that these glasses have good optical property of infrared transmitting.
参考文献
| [1] | |
| [2] | Mitachi S, Tick P. Mater. Sci. Forum, 1988, 32\& |
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