| TeO2-AlF3氟碲酸盐玻璃的性质和结构 |
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| 引用本文： | 袁新强,范有余,胡和方. TeO2-AlF3氟碲酸盐玻璃的性质和结构[J]. 硅酸盐学报, 2005, 33(12): 1494-1498 |
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| 作者姓名： | 袁新强 范有余 胡和方 |
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| 作者单位： | 中国科学院上海光学精密机械研究所,上海,201800;中国科学院研究生院,北京,100039;中国科学院上海光学精密机械研究所,上海,201800 |
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| 基金项目： | 袁新强(1976~),男,博士研究生。胡和方(1941~),男,研究员。~~ |
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| 摘 要： | 制备了不同氟化物含量的（1-x）TeO2-AlF3（x=10％，20％，30％，按摩尔计）透明氟碲酸盐玻璃。利用差热分析和Raman光谱对玻璃的性质和结构进行研究。结果显示：当x达到30％时，氟化铝以Al-F多面体的形式进入玻璃网络结构。随着氟化物含量增加，玻璃在中红外区的透过率提高，玻璃结构单元从[Te（O，F）4]三方双锥向[Te（O，F）3]三方锥转变。Raman光谱显示：1个宽的强峰出现在750～840cm^-1，表明玻璃中Te-O键长介于0．185-0．196nm之间。
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| 关 键 词： | 氟碲酸盐玻璃 玻璃结构 Raman光谱 氟化物玻璃 透红外材料 |
| 文章编号： | 0454-5648（2005）12-1494-05 |
| 收稿时间： | 2005-03-16 |
| 修稿时间： | 2005-08-01 |
PROPERTIES AND STRUCTURE OF TeO2- AlF3 FLUOROTELLURITE GLASS |
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| YUAN Xinqiang,FAN Youyu,HU Hefang. PROPERTIES AND STRUCTURE OF TeO2- AlF3 FLUOROTELLURITE GLASS[J]. Journal of The Chinese Ceramic Society, 2005, 33(12): 1494-1498 |
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| Authors: | YUAN Xinqiang FAN Youyu HU Hefang |
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| Affiliation: | 1. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; 2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | (1-x)TeO2 -xAlF3 (x= 10%, 20%, 30% ,in mole) fluorotellurite transparent glasses were newly prepared. The properties and structure of the glasses were studied by means of differential thermal analysis and Raman spectra. The results indicate that AlF3 enters into the network forming Al - F polyhedron when the content of AlF3 is up to 30 %. With the increase of x, the mid-infrared transmittance increases quickly, the structural units convert from [Te(O,F)4] trigonal bipyramid to [Te(O,F)3 ] trigonal pyramid. A high intensity peak of Raman spectra at near 750 to 840 cm-1 is observed, which corresponds to terminal bonds Te- O with a region of the length from 0. 185 to 0. 196 nm. |
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| Keywords: | fluorotellurite glass glass structure Raman spectrum fluoride glass infrared transparent material |
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