P_2O_5对高膨胀光学玻璃结构与性能的影响  

Effect of P_2O_5 on Structure and Performance of High TEC Glass

作　　者：何峰[1] 张文涛[1] 谢峻林[1] 梅书霞[1] 金明芳[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,湖北武汉430070

出　　处：《玻璃与搪瓷》2015年第6期6-11,共6页Glass & Enamel

基　　金："十二五"国家科技支撑计划资助项目(2012BAA08B04)

摘　　要：以Na_2O-CaO-Al_2O_3-B_2O_3-SiO_2玻璃系统为基础,制备出一系列不同P_2O_5含量的玻璃试样,并对其相关结构和性能进行研究分析。综合运用XRD、Raman和IR测试手段对玻璃内部结构分析后发现,实验条件下随着P_2O_5含量的增加,P-O-P键的数目不断增加,B_2O_3仍然以[BO_4]的形式存在,通过对拉曼光谱高频段的拟合分析发现,硅氧四面体结构中的Q^2基团不断被弱化。此外,实验中制备的玻璃热膨胀系数随着P_2O_5含量的增加而不断增加,最高能够达到11.39×10^(-6)K^(-1)玻璃软化温度不断降低,玻璃的电导率在P_2O_5质量分数为1.0%出现极大值,之后随着P_2O_5含量的增加而逐渐减小。A series of glass samples containing different amount of P2O5 were prepared based on Na20 -CaO-Al2O3-B2O3-SiO2 glass system. The micro- structure of glass was analyzed by using XRD, RAMAN, and IR, and the results showed that with increasing of P2O5 the number of P-O-P in- creased, boric oxide existed mainly in the form of [ BO4 ], and the Q2 was found to be weakened by fit- ting the RAMAN spectroscopy in the high frequency band. Moreover, the thermal expansion coefficient （TEC） of the glass tended to increase while the glass softening temperature decreased, the conductivity of the glass exhibited the maximum value when P2O5 was 1.0 wt%, and then the conductivity of the glass decreased as the increase of P2O5.

关 键 词：流通现代化 物流协会 北京物资学院 现代物流产业 大家好 中国市场学会 物流一体化 京津冀一体化 国家战略 重要研究成果 

分 类 号：TQ171.112[化学工程—玻璃工业]