Modelling aqueous corrosion of nuclear waste phosphate glass

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• 作者：Pavel P. Poluektov^a ; Olga V. Schmidt^a ; Vladimir A. Kascheev^a ; Michael I. Ojovan^b ; ^{m.ojovan@sheffield.ac.uk}
• 关键词：Nuclear waste ; Phosphate glass ; Corrosion ; Modelling ; Long-term durability
• 刊名：Journal of Nuclear Materials
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：484
• 期：Complete
• 页码：357-366
• 全文大小：747 K
• 卷排序：484

文摘

The radionuclides yield is determined by the transport from the glass through the surface corrosion layer. Formation of the surface layer is due to the dissolution of the glass network and the formation of insoluble compounds. The model proposed accounts for glass dissolution, formation of corrosion layer, specie diffusion and chemical reactions. Analytical solutions are found for corrosion layer growth rate and glass components component leaching rates.