caa a22 4500 475829603 CHVBK 20180406123838.0 cr unu---uuuuu 170329e20000501xx s 000 0 eng 10.1007/BF02680530 doi (NATIONALLICENCE)springer-10.1007/BF02680530 Production and investigation of thorium-containing fuel compositions [Elektronische Daten] [I. Kurina, A. Dvoryashin, L. Gudkov] A technology has been developed for obtaining fuel tablets with the compositions (U, Th)O2, (U, Th, Ca)O2, and (U, Th)O2+MgO by combined precipitation of uranium, thorium, magnesium, or calcium components from inert solutions, followed by heat treatment of the powders, compression into pellets, and sintering of the pellets. Work on optimizing the technological processes for obtaining fuel pellets so as to obtain good pellet quality was performed. The effect of the properties of the precipitates and powders, fabricated using different technological regimes on the properties of the finished objects was studied. The work includes detailed investigations of powders (x-ray phase analysis, electron-microscopic investigation) and sintered fuel tablets (change in the geometric dimensions as a result of sintering, determination of the density, and study of the microstructure). The behavior of fuel compositions (U, Th)O2 and (U, Th)O2+MgO in contact, with coolants under conditions where the fuel elements become unsealed was studied: with water at 300°C and sodium at 700°C. 3 figures, 3 tables, 6 references. Kluwer Academic/Plenum Publishers, 2000 Kurina I. aut Dvoryashin A. aut Gudkov L. aut Atomic Energy Springer US 88/5(2000-05-01), 362-367 1063-4258 88:5<362 2000 88 10512 https://doi.org/10.1007/BF02680530 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02680530 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kurina I. aut NATIONALLICENCE 700 1- Dvoryashin A. aut NATIONALLICENCE 700 1- Gudkov L. aut NATIONALLICENCE 773 0- Atomic Energy Springer US 88/5(2000-05-01), 362-367 1063-4258 88:5<362 2000 88 10512 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer