含钐稀土硼硅酸盐玻璃形成能力  

Glass-forming Ability of Samarium Borosilicate Glasses

作　　者：张校平[1] 孟献丰[1] 单小兵[1] 张其土[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：《过程工程学报》2006年第1期120-123,共4页The Chinese Journal of Process Engineering

基　　金：教育部优秀青年骨干教师基金资助项目(编号:教技司2000-65)

摘　　要：通过玻璃形成区实验探索了含钐稀土硼硅酸盐玻璃的形成区范围,研究了Sm2O3含量对稀土玻璃形成区的影响和相应的玻璃形成区图,以及Al2O3含量对含钐稀土硼硅酸盐玻璃形成区的影响.结果表明,当Sm2O3含量从10%增加到30%时,玻璃形成区有所增大,但当Sm2O3含量大于30%时玻璃形成区减小,当Al2O3含量为20%～25%时有较大的稀土玻璃形成区.同时利用热分析结果所得到的玻璃析晶倾向参数β值,讨论了含钐稀土硼硅酸盐玻璃的形成能力,其中当Sm2O3含量为20%,Al2O3含量为25%时,β=0.8～0.85,这时玻璃形成能力较大.Glass-forming range of samarium borosilicate glasses was explored by the experiments of glass-forming region. The effect of the content of Sm2O3 on glass-forming region, the diagrams of glass-forming region and the effect of the content of Al2O3 on the glass-forming ability of samarium borosilicate glasses were studied. The results showed that the glass-forming region was enlarged with increasing content of Sm2O3 from 10% to 30%, but reduced while the content of Sm2O3 was over 30%. Otherwise the glass-forming region was a little larger with the content of Al2O3 from 20% to 25%. In the same time, glass-forming ability of samarium borosilicate glasses was also discussed by the value of β （the parameter of crystallization tendency calculated from the thermo-analysis data）, hereinto, glass-forming ability of samarium borosilicate glasses was preferable under the conditions of Sm203 20%, Al2O3 25%, and β 0.8~0.85.

关 键 词：稀土 氧化钐 稀土玻璃 玻璃形成区 硼硅酸盐玻璃 

分 类 号：TQ174.758[化学工程—陶瓷工业]