利用NMR、DSC及热膨胀等测试分析手段,分析了B2O3-Al2O3~BaO玻璃中不同掺量稀土氧化物对11B和27Al的配位及玻璃热学性能的影响规律.结果表明:当稀土含量逐渐增加时,硼氧三角体[BO3]逐渐向[BO4]转变;原先[AlO4]、[A1O5]、[AlO6]共存的铝氧多面体结构单元逐渐转变为以[AlO4]为主和少量[AlO5]共存的结构;玻璃的相转变温度升高,玻璃低温相转变困难.另外,随着稀土氧化物掺量不断增加,N系列玻璃网络结构的连接削弱,玻璃的析晶热稳定性和热膨胀率均有所降低.
参考文献
[1] | 邱关明;黄良钊;张希艳.稀土光学玻璃[M].北京:兵器工业出版社,1989:268-315. |
[2] | 陆春华,许仲梓,倪亚茹,孟献丰.稀土掺杂ABS防激光玻璃的制备及其结构研究[J].光学技术,2004(01):65-67,69. |
[3] | 干福熹;姜中宏.光学玻璃[M].北京:科学出版社,1964:62. |
[4] | Peters PM.;Houde-Walter SN. .Local structure of Er3+ in multicomponent glasses[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,1998(1/3):162-169. |
[5] | 杨南如;岳文海.无机非金属材料图谱手册[M].武昌:武汉工业大学出版社,2000:624-626. |
[6] | Jin JS.;Yoko T.;Nogami M.;Sakida S. .The local structure of Sm-doped aluminosilicate glasses prepared by sol-gel method[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2000(1/3):183-190. |
[7] | chakraborty L N .Structure property relations in Lathanide borate glass[J].Journal of the American Chemical Society,1985,68:368. |
[8] | N. J. Clayden;S. Esposito;A. Aronne;P. Pernice .Solid state ~(27)Al NMR and FTIR study of lanthanum aluminosilicate glasses[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,1999(1/3):11-19. |
[9] | Richard K.Brow;David R.Tallant;Gary L.Turner .Polyhedral arrangements in lanthanum aluminoborate glasses[J].Journal of the American Ceramic Society,1997(5):1239-1244. |
[10] | Risbud S H et al.Solid-State NMR Evidence of 4-,5-,and 6-Fold Aluminum Sites in Roller-Quenched SiO2-Al2O3 Glasses[J].Journal of the American Chemical Society,1987,70(01):C10-C12. |
[11] | Pernice P;Esposito S;Aronne A;Sigaev V N .Structure and crystallization behavior of glasses in the BaO-B2O3-Al2O3 sysyrm[J].Journal of Non-Crystalline Solids,1999,258:1-10. |
[12] | Ren-Guan Duan;Kai-Ming Liang;Shou-Ren GU .A new criterion for stability of galsses[J].Journal of the European Ceramic Society,1998,18:1131-1137. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%