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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 >Atmospheric corrosion of boron doped iron phosphate glass studied by Raman spectroscopy
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Atmospheric corrosion of boron doped iron phosphate glass studied by Raman spectroscopy

机译：硼掺杂铁磷酸玻璃的大气腐蚀，由拉曼光谱研究

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摘要

Structural stability studies of boron doped 40:60 iron phosphate glasses under humid storage conditions, using Raman spectroscopy is reported. Raman measurements indicate that increased boron doping in these glasses maintaining oxygen/phosphorous ratio constant serves to strengthen the iron phosphate glass network, while for samples with iron/phosphorous ratio a constant, a systematic weakening of the network was observed with increased boron content. Raman measurements on glasses exposed to ambient laboratory conditions (300 K; RH: 70 -80%) for three years reveal excellent structural stability against atmospheric corrosion. Incidentally the sample with the strongest network - 20 mol% boron doped iron phosphate glass with O/P constant, indicated devitrification of the glass surface on storage. Definitive evidence of attack by atmospheric water vapour on the glass surface leading to the above devitrification has been obtained using Raman spectroscopy. Possible pathways for the enhanced atmospheric corrosion of this glass are discussed that would help mitigate this detrimental degradation of boron doped iron phosphate base glasses.
机译：报道了使用拉曼光谱法在潮湿储存条件下掺杂40:60铁磷酸盐玻璃的结构稳定性研究。拉曼测量表明，在维持氧/磷率恒定的这些玻璃中掺杂的增加的硼掺杂用于加强铁磷酸铁玻璃网络，同时对于具有铁/磷比的样品恒定，随着硼含量增加，观察到网络的系统弱化。三年内暴露于环境实验室条件（300K; RH：70-80％）的眼镜上的拉曼测量显示出良好的结构稳定性抵抗大气腐蚀。顺便提及，具有最强的网络 - 20mol％硼掺杂铁磷酸铁玻璃，具有O / P常数，表明玻璃表面的透缺失。使用拉曼光谱法得到了导致上述缺失的玻璃表面上的大气水蒸气攻击的明确证据。讨论了该玻璃的增强大气腐蚀的可能途径，这将有助于减轻硼掺杂铁磷酸盐基础眼镜的这种有害降解。

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