Aluminum (Iron) Phosphate Glasses Containing Rare Earth and Transuranium Elements: Phase Composition, Oxidation State of Np and Pu, and Hydrolytic Durabilityстатья
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Дата последнего поиска статьи во внешних источниках: 11 сентября 2018 г.
Аннотация:Abstract—Samples of aluminum (iron) phosphate glasses containing weighable amounts of rare earth and
transuranium elements were synthesized. The quenched glasses obtained are X-ray amorphous, and in the
course of annealing they undergo partial crystallization with segregation of a poorly soluble phase of monazite structure. However, the hydrolytic durability of the glasses remains on the level meeting the requirements to immobilized high-level waste (no more than 10–7 g cm–2 day–1). Plutonium in the surface layer of the glass samples occurs in oxidation state IV, and neptunium, mainly in oxidation states IV and V.