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2 – ZnO – Bi 2O 3 – Nb 2O 5 system]]>

机译:“:INF> O 3 - NB 2 O 5 系统]]]>

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摘要

In this study we determined the glass formation region in the TeO2- ZnO - Bi2O3- Nb2O5system. The investigation covers TeO2- based glasses containing ZnO (from 10 to 40?mol%), Bi2O3(6–10?mol%) and Nb2O5(6–10?mol%). The glasses obtained were transparent and yellow in colour. The thermal stability of the samples determined by DTA was found to be about 100?°C. Some physical characteristics (density, molar volume, oxygen molar volume and oxygen packing density) were estimated as well. The analysis of IR spectra showed that the network of glasses consists mainly of TeO4(tbp) units, while Raman spectroscopy revealed the existence of TeO4(tbp), TeO3+1and TeO3(tp) units. The UV–Vis spectroscopy established a red shifting of the cut-off depending on composition and the glass rich in TeO2exhibited cut-off at about 388?nm while that with low TeO2content was 378?nm.
机译:在这项研究中,我们确定了Teo2- ZnO - Bi2O3-Nb2O5系统中的玻璃形成区域。 该研究涵盖含有ZnO(10至40摩尔%)的基于TEO2的眼镜,Bi2O3(6-10摩尔%)和Nb2O5(6-10〜摩尔%)。 获得的眼镜是透明和黄色的颜色。 发现DTA测定的样品的热稳定性为约100Ω·℃。 还估计了一些物理特性(密度,摩尔体积,氧气体积和氧气包装密度)。 IR光谱的分析表明,眼镜网络主要由TEO4(TBP)单元组成,而拉曼光谱揭示了TEO4(TBP),TEO3 + 1和TEO3(TP)单位的存在。 UV-VIS光谱取决于组合物和富含TEO2 CONTOF的玻璃的组成和玻璃的液体成立的红色移位,而具有低TEO2Content为378μm。

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