Sintering of Industrial Uranium Dioxide Pellets Using Microwave Radiation for Nuclear Fuel Fabrication

Konstantin S. Pilyushenko, Maxim S. Dmitriyev, Sergey E. Vinokurov (), Trofim I. Trofimov, Boris V. Saveliyev, Alexander I. Kuznetsov, Alexander A. Uvarov and Boris F. Myasoedov
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Konstantin S. Pilyushenko: Radiochemistry Lab, Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academy of Sciences, 19 Kosygin st., 119991 Moscow, Russia
Maxim S. Dmitriyev: Department of Laser and Plasma Technologies of the Office of Educational Programs, National Research Nuclear University MEPhI, 115409 Moscow, Russia
Sergey E. Vinokurov: Radiochemistry Lab, Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academy of Sciences, 19 Kosygin st., 119991 Moscow, Russia
Trofim I. Trofimov: Radiochemistry Lab, Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academy of Sciences, 19 Kosygin st., 119991 Moscow, Russia
Boris V. Saveliyev: Radiochemistry Lab, Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academy of Sciences, 19 Kosygin st., 119991 Moscow, Russia
Alexander I. Kuznetsov: MSZ Machinery Manufacturing Plant, Joint-Stock Company, 144001 Elektrostal, Moscow Region, Russia
Alexander A. Uvarov: Department of Laser and Plasma Technologies of the Office of Educational Programs, National Research Nuclear University MEPhI, 115409 Moscow, Russia
Boris F. Myasoedov: Radiochemistry Lab, Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academy of Sciences, 19 Kosygin st., 119991 Moscow, Russia

Energies, 2022, vol. 15, issue 23, 1-8

Abstract: In this study, the possibility of sintering industrial pressed uranium dioxide pellets using microwave radiation for the production of nuclear fuel is shown. As a result, the conditions for sintering pellets in an experimental microwave oven (power 2.9 kW, frequency 2.45 GHz) were chosen to ensure that the characteristics of the resulting fuel pellets meet the regulatory requirements for ceramic nuclear fuel, including the following: a density of about 10.44 g/cm 3 ; a volume fraction of open pores of tablets of about 0.1%; an oxygen coefficient of no more than 2.002; hydrogen content of about 0.30 ppm; and the change in density after re-sintering on average no more than 1.16%.

Keywords: microwave radiation; sintering; uranium dioxide; fuel pellets (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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