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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 >Structural and transport properties of quaternary glass system: LiF-Li _2O-SrO-Bi_2O_3
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Structural and transport properties of quaternary glass system: LiF-Li _2O-SrO-Bi_2O_3

机译：四元玻璃体系的结构和输运性质：LiF-Li _2O-SrO-Bi_2O_3

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摘要

Bismuth based glasses containing LiF, Li_2O and SrO were investigated by different physical, spectroscopic and transport techniques. The results show that density of the glass system increases whereas glass transition temperature decreases with increase in LiF content. The decrease in glass transition temperature is attributed to the entry of the fluoride ions into the glass network mainly substitutionally in place of oxygen ion. The increase in dc electrical conductivity in the present glasses with increase in the fluorine ions is due to the mixed contribution of the positively charged lithium cations throughout the glass network and the negatively charged fluorine, which may act as impurity and/or as terminal non-bridging halide ion. Infrared and Raman spectroscopic results indicate that the glass network consists of BiO _6 octahedral and BiO_3 pyramidal units.
机译：通过不同的物理，光谱和传输技术研究了含LiF，Li_2O和SrO的铋基玻璃。结果表明，随着LiF含量的增加，玻璃体系的密度增加，而玻璃化转变温度降低。玻璃化转变温度的降低归因于氟离子主要替代氧离子进入玻璃网络。本发明玻璃的直流电导率随氟离子的增加而增加，是由于整个玻璃网络中带正电的锂阳离子与带负电的氟的混合作用所致，氟可作为杂质和/或作为末端非氟桥接卤离子。红外和拉曼光谱结果表明，玻璃网络由BiO _6八面体和BiO_3锥体单元组成。

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