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A synchrotron X-ray spectroscopy study of titanium co-ordination in explosive melt glass derived from the trinity nuclear test

机译:一种同步X射线光谱研究,钛协调衍生自三位一体核试验中的爆炸性熔体玻璃

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摘要

The speciation of Ti in trinitite, the explosive melt glass derived from the Trinity Test of 16(th) of July 1945, was investigated by X-ray absorption spectroscopy (XAS). Ti K-edge XANES showed that Ti was present in the Ti(iv) oxidation state for all samples. Fitting of pre-edge features by Gaussian functions and comparison with standards of known Ti coordination revealed significant variation in Ti coordination environment between samples. The variation of Ti coordination may be attributed to several factors including specific local chemistry and thermal histories of samples, in keeping with the highly heterogeneous microstructure of trinitite and the arkosic sand source material.
机译:通过X射线吸收光谱(XAs)研究了Ti,衍生自7月16日第16卷(Th)16(Th)16(Th)的Trinity熔融玻璃的Ti的形态。 Ti K-Edge Xanes显示Ti存在于所有样品的Ti(IV)氧化状态中。 通过高斯函数的预先预先特征和与已知的Ti标准的比较揭示了样品之间Ti协调环境的显着变化。 Ti协调的变异可以归因于包括特异性局部化学和样品的热历史的若干因素,以与三硝酸盐和阿铵砂源材料的高度异质微观结构保持一致。

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  • 来源
    《RSC Advances》 |2019年第23期|共7页
  • 作者单位

    Univ Sheffield Dept Mat Sci &

    Engn Immobilisat Sci Lab Sheffield S Yorkshire England;

    Univ Sheffield Dept Mat Sci &

    Engn Immobilisat Sci Lab Sheffield S Yorkshire England;

    NIST 100 Bur Dr Gaithersburg MD 20899 USA;

    Univ Sheffield Dept Mat Sci &

    Engn Immobilisat Sci Lab Sheffield S Yorkshire England;

    Univ Sheffield Dept Mat Sci &

    Engn Immobilisat Sci Lab Sheffield S Yorkshire England;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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