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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 >Effect of the iron content on the structure and electrical properties of sodium borosilicate glasses: XRD, TEM, Mossbauer, FTIR and DIS spectroscopy study
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Effect of the iron content on the structure and electrical properties of sodium borosilicate glasses: XRD, TEM, Mossbauer, FTIR and DIS spectroscopy study

机译：铁含量对硼硅酸钠玻璃结构和电性能的影响：XRD，TEM，MOSSBAUER，FTIR和DIS光谱研究

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摘要

The iron-bearing sodium borosilicate glasses with different contents of iron were prepared by the charge melting method and studied by XRD, TEM, FTIR, Mossbauer and Dynamic Impedance Spectroscopy techniques. An analysis and the transmittance spectra of two-phase sodium borosilicate glasses with different contents of iron oxide were carried out. A usage of the Mossbauer spectroscopy revealed differences between two-phase and porous glasses. In both cases Fe2+ and Fe3+ ions in octahedral and tetrahedral coordination were found, while in the two-phase glasses the significant contribution of magnetite was additionally detected. The activation energy associated with the relaxation processes determined from the electric modulus spectra was found to be in a range between 0.986 eV and 0.729 eV, which is close to the activation energy for dc conductivity. Two different conduction mechanisms were observed and their physical origin was explained. The hopping between two valence states of iron and the sodium ion conduction mechanism was additionally discussed.
机译：通过电荷熔化法制备具有不同铁含量的铁硼硅酸钠玻璃，并通过XRD，TEM，FTIR，Mossbauer和动态阻抗光谱技术研究。进行了两相硼硅酸钠玻璃与氧化铁不同含量的分析和透射光谱。司机谱光谱的用法揭示了两相和多孔玻璃之间的差异。在发现八面体和四面体协调中的Fe2 +和Fe3 +离子的情况下，在两相眼镜中，另外检测磁铁矿的显着贡献。发现与从电模型光谱确定的弛豫过程相关的激活能量在0.986eV和0.729eV之间的范围内，其接近DC电导率的激活能量。观察到两种不同的传导机制，并解释了它们的物理来源。另外讨论了两种价值和钠离子传导机构之间的跳跃。

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