Sodium-aluminum-iron phosphate glasses as legacy high level waste forms

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• 作者：S.V. Stefanovsky^a ; ^{serge.stefanovsky@yandex.ru} ; O.I. Stefanovsky^a ; M.B. Remizov^b ; P.V. Kozlov^b ; E.A. Belanova^b ; R.A. Makarovsky^b ; B.F. Myasoedov^c
• 关键词：Devitrification ; High level waste ; Iron ; Leachability ; Nickel ; Sodium&ndash ; aluminum&ndash ; iron phosphate glass ; X-ray diffraction
• 刊名：Progress in Nuclear Energy
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：94
• 期：Complete
• 页码：229-234
• 全文大小：1802 K
• 卷排序：94

文摘

Sodium aluminophosphate based glasses at low Fe2O3 + NiO + Cr2O3 content cooled at the regime simulating melt cooling in a canister filled with glass were found to be mostly X-ray amorphous and hydrolytically durable that makes them suitable as HLW forms. Introduction of ∼6 wt.% B2O3 stabilizes vitreous state. Fe2O3 + NiO substitution for Al2O3 in amount of 7–8 wt.% favors devitrification and reduces hydrolytic durability of glasses. Particularly negative effect offers occurrence of sulfate ions.