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›› 2006, Vol. 6 ›› Issue (1): 120-123.

• 材料工程专栏 • 上一篇    下一篇

含钐稀土硼硅酸盐玻璃形成能力

张校平,孟献丰,单小兵,张其土   

  1. 南京工业大学材料科学与工程学院
  • 出版日期:2006-02-20 发布日期:2006-02-20

ZHAO Xiao-ping,MENG Xian-feng,SHAN Xiao-bing,ZHANG Qi-tu   

  1. Material Science & Technology College, Nanjing university of Technology
  • Online:2006-02-20 Published:2006-02-20

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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b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，b=0.8~0.85，这时玻璃形成能力较大.

关键词: 稀土, 氧化钐, 稀土玻璃, 玻璃形成区, 硼硅酸盐玻璃

Abstract: 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 b (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 Sm2O3 20%, Al2O3 25%, and b 0.8~0.85.

Key words: rare earth, samarium oxide, rare earth glasses, glass-forming region, borosilicate glasses