Low temperature synthesis of uranium mononitride powder
Source abstract
Abstract
Abstract The uranium mononitride (UN) powder was successfully synthesized through the quantitative nitridation between uranium powder and nitrogen gas at 873 K in this work. After quantitative nitridation at 873 K for 16 h, the single phase of UN powder could be obtained. The realization of the low-temperature synthesis of UN was attributed to the solid-phase reaction between uranium sesquinitride and uranium. The reaction product was mainly UN after calcining the mixture of uranium sesquinitride and uranium powder at 873 K for 8 h, for the Gibbs free energy of this reaction at the 873 K was −160.91 kJ/mol.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Inorganic Chemistry and Materials · Nuclear materials and radiation effects
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
Show source-provided references
1. Lyon · 1991
2. SSTAR: the US lead-cooled fast reactor (LFR)10.1016/j.jnucmat.2008.02.049 ↗
3. SVBR-75/100 multipurpose modular low-power fast reactor with lead-bismuth coolant10.1023/B:ATEN.0000047677.16291.f2 ↗
4. The closed on-site fuel cycle of the BREST reactors10.1016/j.pnucene.2005.05.017 ↗
5. Inherent safety of a promising nuclear technology based on BN-80010.1023/A:1012307625054 ↗
6. Core and fuel cycle for an advanced sodium-cooled fast reactor10.1007/s10512-010-9287-y ↗
7. Prospects for the BN-1800 sodium-cooled fast reactor satisfying 21st century nuclear power requirements10.1023/B:ATEN.0000038095.24870.58 ↗
8. Weber · 1968
9. Formation of uranium mononitride by the reaction of uranium dioxide with carbon in ammonia and a mixture of hydrogen and nitrogen— I synthesis of high purity UN10.1016/0022-3115(77)90187-8 ↗
10. Investigation of the reaction UO2+x + PuO2 + C + N2 by thermogravimetry10.1016/0022-3115(88)90148-1 ↗
11. Fabrication and testing of uranium nitride fuel for space power reactors10.1016/0022-3115(88)90029-3 ↗
12. Kinetics of the carbothermic synthesis of uranium mononitride microspheres10.1016/0022-3115(91)90363-C ↗
13. Fabrication of nitride fuels for transmutation of minor actinides10.1016/S0022-3115(03)00163-6 ↗
14. Carbothermic synthesis of 820μm uranium nitride kernels: literature review, thermodynamics, analysis, and related experiments10.1016/j.jnucmat.2013.10.036 ↗
15. Studies on plutonium-zirconium co-precipitation and carbothermal reduction in the internal gelation process for nitride fuel preparation10.1016/j.jnucmat.2016.07.055 ↗
16. Choi · 2006
17. Uranium nitrides10.1016/0022-3115(63)90115-6 ↗
18. The sintering of uranium mononitride10.1016/0022-3115(65)90031-0 ↗
19. The formation of uranium sesquinitride by reactions of U or UH3 with a N2–H2 mixture10.1016/S0925-8388(98)00182-0 ↗
20. Kinetic and microstructural studies of thermal decomposition in uranium mononitride compacts subjected to heating in high-purity helium10.1016/j.jnucmat.2016.04.018 ↗
21. Uranium positions in cubic U2N3+x10.1016/0022-3115(72)90169-9 ↗
22. Reaction sequence and kinetics of uranium nitride decomposition10.1021/ic901165j ↗
23. Synthesis of uranium nitride by a mechanically induced gas–solid reaction10.1016/j.jnucmat.2008.07.043 ↗
24. Oxidative ammonolysis of uranium (IV) fluorides to uranium (VI) nitride10.1016/j.jnucmat.2007.06.022 ↗
25. Phase relations and thermodynamic properties of the uranium-nitrogen system10.1016/0022-3115(74)90117-2 ↗
26. The enthalpies of formation of uranium mononitride and α- and β-uranium sesquinitride by fluorine bomb calorimetry10.1016/0021-9614(81)90127-0 ↗
27. Barin · 1977