Synthesis of High-Density Pellets of Uranium Dioxide by Spark Plasma Sintering in Dies of Different Types
- Authors: Papynov E.K.1,2, Shichalin O.O.1,2, Mironenko A.Y.1, Ryakov A.V.3, Manakov I.V.3, Makhrov P.V.3, Buravlev I.Y.1,2, Tananaev I.G.1,2, Avramenko V.A.1,2, Sergienko V.I.1
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Affiliations:
- Institute of Chemistry, Far Eastern Branch
- Far Eastern Federal University
- Mayak Production Association
- Issue: Vol 60, No 4 (2018)
- Pages: 362-370
- Section: Article
- URL: https://journals.rcsi.science/1066-3622/article/view/224590
- DOI: https://doi.org/10.1134/S1066362218040045
- ID: 224590
Cite item
Abstract
A procedure for electric pulse consolidation of commercial UO2 powders of various ceramic grades into high-density fuel pellets using dies of various types was studied. The influence of the parameters of spark plasma sintering (SPS) on the chemical composition of the initial powders and quality of ready UO2 pellets was examined. The main advantages and drawbacks of the SPS process for consolidation of UO2 powder in standard graphite dies were revealed. A novel alternative procedure for SPS of UO2-based fuel pellets in Mo-based dies was suggested. High quality of the pellets (density 97.5–98.4% of theoretical, no C impurity, mean grain size no more than 3 μm) and mild sintering conditions (1100°С, 141.5 MPa, 25 min) make the process highly promising. The results obtained are of interest for the development and possible implementation of an industrial SPS process for production of ceramic nuclear fuel.
About the authors
E. K. Papynov
Institute of Chemistry, Far Eastern Branch; Far Eastern Federal University
Author for correspondence.
Email: papynov@mail.ru
Russian Federation, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022; ul. Sukhanova 8, Vladivostok, 690091
O. O. Shichalin
Institute of Chemistry, Far Eastern Branch; Far Eastern Federal University
Email: papynov@mail.ru
Russian Federation, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022; ul. Sukhanova 8, Vladivostok, 690091
A. Yu. Mironenko
Institute of Chemistry, Far Eastern Branch
Email: papynov@mail.ru
Russian Federation, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022
A. V. Ryakov
Mayak Production Association
Email: papynov@mail.ru
Russian Federation, pr. Lenina 31, Ozersk, Chelyabinsk oblast, 456780
I. V. Manakov
Mayak Production Association
Email: papynov@mail.ru
Russian Federation, pr. Lenina 31, Ozersk, Chelyabinsk oblast, 456780
P. V. Makhrov
Mayak Production Association
Email: papynov@mail.ru
Russian Federation, pr. Lenina 31, Ozersk, Chelyabinsk oblast, 456780
I. Yu. Buravlev
Institute of Chemistry, Far Eastern Branch; Far Eastern Federal University
Email: papynov@mail.ru
Russian Federation, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022; ul. Sukhanova 8, Vladivostok, 690091
I. G. Tananaev
Institute of Chemistry, Far Eastern Branch; Far Eastern Federal University
Email: papynov@mail.ru
Russian Federation, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022; ul. Sukhanova 8, Vladivostok, 690091
V. A. Avramenko
Institute of Chemistry, Far Eastern Branch; Far Eastern Federal University
Email: papynov@mail.ru
Russian Federation, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022; ul. Sukhanova 8, Vladivostok, 690091
V. I. Sergienko
Institute of Chemistry, Far Eastern Branch
Email: papynov@mail.ru
Russian Federation, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022