铒硼硅酸盐玻璃形成性能的研究  

Research on Glass-Forming Abilities of Erbium Borosilicate Glasses

作　　者：张其土[1] 付振晓[1] 陆春华[1] 许仲梓[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《中国稀土学报》2003年第2期147-150,共4页Journal of the Chinese Society of Rare Earths

基　　金：江苏省"333工程"资助项目;教育部优秀青年骨干教师基金资助项目(教技司[2000]65)

摘　　要：用新的玻璃形成区研究方法探索了铒硼硅酸盐玻璃的形成区范围,研究了Al2O3含量和Er2O3含量对玻璃形成区的影响和相应的玻璃形成区图。结果表明:当Al2O3含量从15%增加到20%时玻璃形成区相应增大,Er2O3含量从20%增加到30%时玻璃形成区缩小。同时利用热分析结果所得到的玻璃析晶倾向参数β值,讨论了铒硼硅酸盐玻璃的形成能力,发现含有Er2O3的铝硼硅酸盐玻璃的玻璃形成能力比较弱,但在一定的组成范围内随着Er2O3含量的增加,铒硼硅酸盐玻璃的形成能力也会有所提高。另外,在铒硼硅酸盐玻璃系统中加入Al2O3,可以加强玻璃的网络结构,从而能够提高玻璃的形成能力。The study of glass formation properties is important for rare earth glasses, which have been a kind of concernful materials used in the high technology fields. Glass formation range of erbium borosilicate glasses was explored in this paper by the new method. The effects of Al2O3 and Er2O3 on glassforming region were researched and the glassforming regions of various concentrations of Al2O3 and Er2O3 were presented respectively. Results show that the area of glass formation range increases when Al2O3 concentration from 20% to 15%, while it decreased when Er2O3 concentration from 20% to 30%. The stability of the glasses against crystallization was discusses also, by the value of β, the parameter of crystallization tendency calculated from the thermoanalysis data. Glass forming ability of erbium borosilicate glasses is relatively poor. But in a limited range of Er2O3 concentration, it will improve with the increasing concentration of Eu2O3. In addition, adding Al2O3 into erbium borosilicate glasses system could strengthen the network structure, then would improve the glass forming ability.

关 键 词：无机非金属材料 氧化铒 稀土玻璃 玻璃形成区 硼硅酸盐玻璃 稀土 

分 类 号：TQ174.758[化学工程—陶瓷工业]