Dissolution mechanisms of simplified analogues of complex UK radioactive waste glasses

调查英国核废料玻璃的耐水性。该项目包括在复杂玻璃的行为和它们的简化类似物之间建立联系，从中可以确定有关溶解和钝化的机理信息。简化的硼硅酸盐玻璃将被配制成模仿位于塞拉菲尔德的英国废物玻璃化厂展示的复杂玻璃的行为。结合对玻璃的电感耦合等离子体质谱、电子显微镜和核磁共振测量，以确定玻璃表面蚀变层的性质及其对玻璃整体溶解水平的影响。

To investigate the aqueous durability of UK nuclear waste glasses. The project involves making the link between the behaviour of complex glasses and their simplified analogues from which mechanistic information on dissolution and passivation can be determined. Simplified borosilicate glasses will be formulated to mimic the behaviour of the complex glasses presenting at the UK waste vitrification plant at Sellafield. A combination of ICP-MS, electron microscopy and nuclear magnetic resonance measurements of glasses will be made to determine the nature of the alteration layer on the glass surface and its influence on the overall level of glass dissolution.