Trivalent actinides and lanthanides incorporation and partitioning in UMo glass-ceramics
Source abstract
Abstract
This article focuses on the Am incorporation and location in the UMo-glass ceramic designed to manage fission product solutions enriched in 241 Am generated by the reprocessing of UMo spent fuel. This type of glass ceramic contains crystalline phases, which are phosphates, molybdates and zircons, embedded in a durable borosilicate glass matrix. Two types of UMo-glass ceramics were considered in this study. One type of samples was doped with different amounts of Am and/or Nd to assess the comparative role of Nd versus Am in terms of incorporation, location and microstructure. A second type of sample was doped with 244Cm, in order to specify the behavior of 244Cm compared with that of Nd and Am, with a view to using this short-lived isotope for aging experiments. These matrices were characterized by gamma spectrometry and isothermal calorimetry to check the overall homogeneity of Am and Cm, then by Raman spectroscopy, SEM, EPMA and XRD to determine the microstructure and the actinide/Nd distribution in the different phases. The microstructure of the samples was heterogeneous as expected, with the presence of phosphate, molybdate and zircon crystalline phases. A great enrichment of Am, Cm and Nd was observed in the phosphate and molybdate phases compared to the embedding glassy matrix and the zircon crystals. A partition coefficient of around x 6 – 7 for Am and Nd was calculated in these two crystalline phases compared to the mean target doping value. Finally, Nd behaved like trivalent actinides in the UMo matrix and could therefore be considered as a relevant surrogate.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear materials and radiation effects · Nuclear Materials and Properties · Radioactive element chemistry and processing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (48)
Show source-provided references
1. 2018
2. Radionuclides containment in nuclear glasses: an overview10.1515/ract-2016-2658 ↗
3. Materials science of high-level nuclear waste immobilization10.1557/mrs2009.12 ↗
4. Americium and trivalent Lanthanides incorporation in high-level waste glass-ceramics10.1016/j.jnucmat.2017.05.045 ↗
5. Glasses and glass-ceramics for nuclear waste immobilization
6. The immobilization of high level radioactive wastes using ceramics and glasses10.1023/A:1018646507438 ↗
7. Molecular dynamics simulation of radiation damage in glasses10.1016/j.jnoncrysol.2011.02.026 ↗
8. Monitoring of alpha-decay radiation damage in a 241Am-doped glass-ceramic material10.1016/j.jnucmat.2023.154397 ↗
9. On selection of matrix (wasteform) material for higher activity nuclear waste immobilization (review)10.1134/S0036023619130047 ↗
10. Glass crystalline materials as advanced nuclear wasteforms10.3390/su13084117 ↗
11. Effect of molybdenum on the structure and on the crystallization of SiO2-Na2O-CaO-B2O3 glasses10.1111/j.1551-2916.2006.01467.x ↗
12. Effecto of compositional changes on the structure and crystallization tendency of a borsilicate glass containing MoO3
13. Glass matrices for immobilizing nuclear waste containing molybdenum and phosphorus10.1016/j.jnucmat.2007.11.013 ↗
14. Glass ceramic for the vitrification of high level waste with a high molybdenum content10.1016/j.jnucmat.2019.03.041 ↗
15. Heat treatments versus microstructure in a molybdenum-rich borosilicate10.1016/j.jnoncrysol.2003.09.055 ↗
16. Phase separation and crystallization of borosilicate glass enriched in MoO3, P2O5, ZrO2, CaO10.1016/j.jnoncrysol.2007.07.041 ↗
17. Leaching behaviour of and Cs disposition in a UMo powellite glass–ceramic10.1016/j.jnucmat.2014.02.024 ↗
18. Solubility and partitioning of minor-actinides and lanthanides in alumino-borosilicate nuclear glass
19. Effect of alpha radiation on the leaching behaviour of nuclear glass10.1016/j.jnucmat.2007.01.099 ↗
20. Specific outcomes of the research on the radiation stability of the French nuclear glass towards alpha decay accumulation10.1016/j.jnucmat.2013.09.039 ↗
21. Effect of clayey groundwater on the dissolution rate of SON68 simulated nuclear waste glass at 70 °C10.1016/j.jnucmat.2018.03.013 ↗
22. Leaching of a zirconolite ceramic waste-form under proton and He2+ irradiation10.1524/ract.2008.1545 ↗
23. Alpha-decay damage effects in curium-doped titanate ceramic containing sodium-free high-level nuclear waste10.1111/j.1151-2916.1994.tb04591.x ↗
24. Helium release from plutonium and curium-doped zirconolite10.1016/j.jnucmat.2007.01.096 ↗
25. Irradiation stability of R7T7-type borosilicate glass10.1016/j.jnucmat.2006.01.021 ↗
26. Leaching of actinides from the French LWR reference glass10.1557/PROC-50-211 ↗
27. Single phase melt processed powellite (Ba,Ca)MoO4 for the immobilization of Mo-rich nuclear waste10.1016/j.jallcom.2012.09.049 ↗
28. Correlation between Raman wavenumbers and P-O bond lengths in crystalline inorganic phosphates10.1002/jrs.1253 ↗
29. Vibrational properties of calcium phosphate compounds. 1. Raman spectrum of β-tricalcium phosphate10.1021/cm960425d ↗
30. Raman spectra in LiH2PO4 and KLi(H2PO4)2: mode assignment10.1002/jrs.5522 ↗
31. Direct observation of enhanced raman scattering on nano-sized ZrO2 substrate: charge-transfer contribution10.3389/fchem.2019.00245 ↗
32. A study of zircon crystallization, structure, and chemical resistance relationships in ZrO2 containing ceramic glazes10.1016/j.bsecv.2021.07.002 ↗
33. Mode assignments of the Raman spectrum of monoclinic zirconia by isotopic exchange technique10.1002/1521-3951(199710)203:2<557::AID-PSSB557>3.0.CO;2-C ↗
34. Solid-State Synthesis of Monazite-type Compounds Containing Tetravalent Elements10.1021/ic7012123 ↗
35. Vibrational spectra of monazite-type rare-earth orthophosphates10.1016/j.optmat.2005.09.001 ↗
36. Natural high-pressure polymorph of merrillite in the shock veins of the Suizhou meteorite10.1016/S0016-7037(02)00833-5 ↗
37. Synthesis and characterization of strontium–calcium phosphate γ-Ca3−xSrx(PO4)2 (0≤x≤2)10.1016/j.matchemphys.2009.11.010 ↗
38. Subsolidus Relations in the System 2CaO·SiO2-3CaO·P2O510.1111/j.1151-2916.1969.tb11948.x ↗
39. Antimicrobial potency of alkali ion substituted calcium phosphate cements10.1016/j.biomaterials.2005.05.035 ↗
40. Structural and spectroscopic characterization of a series of potassium- and/or sodium-substituted β-tricalcium phosphate10.1016/j.actbio.2010.12.016 ↗
41. The Infrared and Raman Spectra of β-and α-Tricalcium Phosphate (Ca3(Po4)2)10.1080/00387019808007439 ↗
42. High-level nuclear waste immobilization with ceramics10.1016/0272-8842(91)90024-T ↗
43. Impact of rare earth ion size on the phase evolution of MoO3-containing aluminoborosilicate glass-ceramics10.1016/j.jnucmat.2018.08.004 ↗
44. Trivalent actinide coprecipitation with powellite (CaMoO4): secondary solid solution formation during HLW borosilicate-glass dissolution10.1524/ract.92.9.639.54976 ↗
45. Site-selective time resolved laser fluorescence spectroscopy of Eu and Cm doped LaPO410.1524/ract.2012.1900 ↗
46. Radiation damage in zircon and monazite10.1016/S0016-7037(98)00174-4 ↗
47. Irradiated rare-earth-doped powellite single crystal probed by confocal Raman mapping and transmission electron microscopy10.1002/jrs.4472 ↗
48. Discovery of a maximum damage structure for Xe-irradiated borosilicate glass ceramics containing powellite10.1016/j.jnucmat.2018.08.012 ↗