Aluminum (Iron) Phosphate Glasses Containing Rare Earth and Transuranium Elements: Phase Composition, Oxidation State of Np and Pu, and Hydrolytic Durability
- Authors: Danilov S.S.1, Stefanovsky S.V.2, Stefanovskaya O.I.2, Vinokurov S.E.1, Myasoedov B.F.1,2, Teterin Y.A.3
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Affiliations:
- Vernadsky Institute of Geochemistry and Analytical Chemistry
- Frumkin Institute of Physical Chemistry and Electrochemistry
- National Research Centre Kurchatov Institute
- Issue: Vol 60, No 4 (2018)
- Pages: 434-439
- Section: Article
- URL: https://journals.rcsi.science/1066-3622/article/view/224642
- DOI: https://doi.org/10.1134/S1066362218040136
- ID: 224642
Cite item
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.
About the authors
S. S. Danilov
Vernadsky Institute of Geochemistry and Analytical Chemistry
Author for correspondence.
Email: danilov070992@gmail.com
Russian Federation, ul. Kosygina 19, Moscow, 119991
S. V. Stefanovsky
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: danilov070992@gmail.com
Russian Federation, Leninskii pr. 31, korp. 4, Moscow, 119071
O. I. Stefanovskaya
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: danilov070992@gmail.com
Russian Federation, Leninskii pr. 31, korp. 4, Moscow, 119071
S. E. Vinokurov
Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: danilov070992@gmail.com
Russian Federation, ul. Kosygina 19, Moscow, 119991
B. F. Myasoedov
Vernadsky Institute of Geochemistry and Analytical Chemistry; Frumkin Institute of Physical Chemistry and Electrochemistry
Email: danilov070992@gmail.com
Russian Federation, ul. Kosygina 19, Moscow, 119991; Leninskii pr. 31, korp. 4, Moscow, 119071
Yu. A. Teterin
National Research Centre Kurchatov Institute
Email: danilov070992@gmail.com
Russian Federation, pl. Akademika Kurchatova 1, Moscow, 123182