The effect of uranium oxide additions on the structure of alkali borosilicate glasses
The effect of uranium oxide additions on the structure of alkali borosilicate glasses
复制标题
添加氧化铀对碱金属硼硅酸盐玻璃结构的影响
DOI:
10.1016/j.jnoncrysol.2013.06.026
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发表时间:
2013
影响因子:
3.5
通讯作者:
Connelly A
中科院分区:
文献类型:
--
作者:
Connelly A
The effect of uranium on glass structure is of interest in the context both of geological and nuclear waste glasses. In this study, solid state Magic Angle Spinning Nuclear Magnetic Resonance (MAS-NMR) spectroscopy was used to establish the effect of UO3on the bulk structure of mixed alkali borosilicate glass. The effects of increasing UO3content on boron co-ordination, alkali co-ordination and network polymerisation, determined using MAS-NMR, show that UO3acts essentially as an intermediate within the glass, occupying sites in the interstices of the glass network related to the alkali channels. This requires little structural rearrangement of the glass and so allows for the high solubility of UO3. It is shown that each mole of UO3requires 2 moles of alkali for charge balance.7Li MAS-NMR spectra indicate that with the addition of UO3the structural role of Li changes.
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影响因子:
3.5
作者:
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通讯作者:
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DOI:
--
发表时间:
1998
期刊:
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DOI:
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2001
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