| GeO2-PbF2-ZnF2玻璃的Raman光谱和结构 |
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| 引用本文： | 薛理辉,恽怀顺,何书平.GeO2-PbF2-ZnF2玻璃的Raman光谱和结构[J].武汉理工大学学报,1999,21(4). |
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| 作者姓名： | 薛理辉 恽怀顺 何书平 |
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| 作者单位： | 武汉工业大学 |
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| 摘 要： | 用Ｒａｍａｎ光谱研究了ＧｅＯ２－ＰｂＦ２－ＺｎＦ２系统玻璃结构。结果表明，这种氟氧混合体系玻璃主要以［ＧｅＯ４－ｘＦｘ］四面体、［ＺｎＦ４］和［ＺｎＯ４］单元共同构成三维网络。网络中非桥氧或［ＧｅＯ４－ｘＦｘ］四面体的数量随Ｆ－／Ｏ２－比例增加而增加，而Ｆ－／Ｏ２－比例一定时，Ｚｎ２＋则能提高［ＧｅＯ４－ｘＦｘ］四面体的聚合度。
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| 关 键 词： | GeO_2－PbF_2－ZnF_2玻璃 Raman光谱 网络单元 |
Raman Spectra and Structure of GeO2-PbF2-ZnF2 Glasses |
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| Xue Lihui,Yun Huaishun,He Shuping.Raman Spectra and Structure of GeO2-PbF2-ZnF2 Glasses[J].Journal of Wuhan University of Technology,1999,21(4). |
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| Authors: | Xue Lihui Yun Huaishun He Shuping |
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| Abstract: | Raman spectra have been used to study the structure of
GeO 2 glasses with PbF 2 and ZnF 2 additions. The results show that the three dimensional
network within GeO 2 PbF 2 ZnF 2 oxyfluoride glasses systems is mainly built up of the GeO
4- x F x ] tetrahedra,ZnF 4] and units.The number of the non bridging oxygens or GeO 4-
x F x ] tetrahedra units increase with increasing of the F -/O 2- ratio. While the F -/O 2-
ratio is constant,the Zn 2 can polymerize the GeO 4- x F x ] tetrahedra units within the
network. |
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| Keywords: | GeO 2 PbF 2 ZnF 2 glasses Raman spectra network units |
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