Factors Affecting Nitrogen Dissolution in Sodium Metaphosphate Glass
Factors Affecting Nitrogen Dissolution in Sodium Metaphosphate Glass
复制标题
DOI：
10.1111/j.1151-2916.1987.tb04973.x
复制
发表时间：
1987-04
影响因子：
3.9
通讯作者：
Y. Peng;D. Day
中科院分区：
文献类型：
--
作者：
Y. Peng;D. Day
研究了在干氨、合成气和90%N_2 + 10%CO气氛中制备磷酸钠氧氮化物（Na-P-O-N）玻璃。显着的氮溶解，高达13重量%的磷酸钠熔体中，只发生在氨。研究了氮溶解动力学随重熔时间（1至96 h）和温度（660°至760°C）的变化。较高的温度会加速氮气的溶解，但温度不应超过760 ℃。随着氮在NaPO 3熔体中的溶解，化学耐久性得到了极大的改善。其他性能的变化包括软化温度，热膨胀系数，折射率，显微硬度等。提出了一个双链结构模型的Na-P-O-N玻璃。
The preparation of sodium phosphate oxynitride (Na-P-O-N) glasses was investigated in dry ammonia, forming gas and 90% N2+ 10% CO atmospheres. Significant nitrogen dissolution, up to 13 wt% in a NaPO3 melt, occurred only in ammonia. The kinetics of nitrogen dissolution was studied as a function of remelting time (1 to 96 h) and temperature (660° to 760°C). Higher temperature accelerates nitrogen dissolution, but the temperature should not exceed 760°C. Great improvement in chemical durability occurs with nitrogen dissolution in a NaPO3 melt. Other property changes reported include softening temperature, thermal expansion coefficient, refractive index, microhardness, etc. A double chain structure model is proposed for the Na-P-O-N glass.