Effect of the β decay of metallic fission products on the chemical and phase compositions of the uranium–plutonium nitride nuclear fuel irradiated by fast neutrons
- Authors: Bondarenko G.G.1, Androsov A.V.2, Bulatov G.S.3, Gedgovd K.N.3, Lyubimov D.Y.2, Yakunkin M.M.1
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Affiliations:
- National Research University Higher School of Economics
- FGUP NII NPO Luch
- Institute of Physical Chemistry and Electrochemistry
- Issue: Vol 2016, No 9 (2016)
- Pages: 879-883
- Section: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/170888
- DOI: https://doi.org/10.1134/S0036029516090068
- ID: 170888
Cite item
Abstract
Thermodynamic analysis of the chemical and phase compositions of uranium–plutonium nitride (U0.8Pu0.2)N0.995 irradiated by fast neutrons to a burn-up fraction of 14% shows that a structure, which consists of a solid solution based on uranium and plutonium nitrides and containing some elements (americium, neptunium, zirconium, yttrium, lanthanides), individual condensed phases (U2N3, CeRu2, Ba3N2, CsI, Sr3N2, LaSe), metallic molybdenum and technetium, and U(Ru, Rh, Pd)3 intermetallics, forms due to the accumulation of metallic fission products. The contents and compositions of these phases are calculated. The change in the chemical and phase compositions of the irradiated uranium–plutonium nitride during the β decay of metallic radioactive fission products is studied. The kinetics of the transformations of 95Nb41N, 143Pr59N, 151Sm62N, and 147NdN into 95Mo42 + Ns.s., 143Nd60N, 151Eu63N, and 147SmN, respectively, is calculated.
About the authors
G. G. Bondarenko
National Research University Higher School of Economics
Author for correspondence.
Email: gbondarenko@hse.ru
Russian Federation, Moscow
A. V. Androsov
FGUP NII NPO Luch
Email: gbondarenko@hse.ru
Russian Federation, Podolsk, Moscow oblast
G. S. Bulatov
Institute of Physical Chemistry and Electrochemistry
Email: gbondarenko@hse.ru
Russian Federation, Moscow
K. N. Gedgovd
Institute of Physical Chemistry and Electrochemistry
Email: gbondarenko@hse.ru
Russian Federation, Moscow
D. Yu. Lyubimov
FGUP NII NPO Luch
Email: gbondarenko@hse.ru
Russian Federation, Podolsk, Moscow oblast
M. M. Yakunkin
National Research University Higher School of Economics
Email: gbondarenko@hse.ru
Russian Federation, Moscow