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首页> 外文期刊>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 >Mixed former effect between TeO2 and SiO2 in the Li2O center dot TeO2 center dot SiO2 system
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Mixed former effect between TeO2 and SiO2 in the Li2O center dot TeO2 center dot SiO2 system

机译：在Li2O中心点TeO2中心点SiO2系统中TeO2和SiO2之间的混合前效应

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Glass samples of the 0.30Li(2)O . 0.70(xTeO(2) . (1 - x)SiO2) system were synthesized. The difference between the melting points of silica and tellurium oxide, which melts at 733 degrees C with further volatilization, makes this synthesis a complex one. However, transparent and homogeneous glasses were obtained in the SiO2-rich domain up to x = 0.30 by mixing appropriate amounts of the two binary systems, 0.30Li(2)O . 0.70SiO(2) and 0.30Li(2)O . 0.70TeO(2), in an induction furnace. With the increase of the TeO2 content in the samples investigated a decrease of T-g and an increase in the samples' densities were measured. The results of electrical measurements, carried out by impedance spectroscopy, show an increase in electrical conductivity when TeO2 is added to the Li2O . SiO2 glass, which we attribute to a mixed former effect between TeO2 and SiO2. Both the activation energy and the oo parameter of the Arrhenius equation increase with increased TeO2 content in the samples. A carbon replica analysis of the samples shows a phase separation in the ternary glasses. (C) 2000 Published by Elsevier Science B.V. All rights reserved. [References: 20]
机译：0.30Li（2）O的玻璃样品。合成了0.70（xTeO（2）。（1-x）SiO2）系统。二氧化硅和氧化碲的熔点之间的差异（在733℃下熔融并进一步挥发）使该合成变得复杂。但是，通过混合适当量的两种二元体系0.30Li（2）O，可以在SiO2含量高的区域中获得透明且均匀的玻璃，直至x = 0.30。 0.70SiO（2）和0.30Li（2）O。 0.70TeO（2），在感应炉中。随着所研究样品中TeO2含量的增加，T-g降低，并且样品密度增加。通过阻抗谱进行的电学测量结果表明，当将TeO2添加到Li2O中时，电导率增加。 SiO2玻璃，我们将其归因于TeO2和SiO2之间的混合前效应。随着样品中TeO2含量的增加，Arrhenius方程的活化能和oo参数都增加。样品的碳复制分析表明三元玻璃中存在相分离。 （C）2000，Elsevier Science B.V.保留所有权利。 [参考：20]

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