Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation

The sol-gel route via internal gelation was applied for the production of Nd- and Ce-doped uranium dioxide microspheres. Trivalent and tetravalent Ce precursors were used and the influence of the precursors’ oxidation state on the fabrication process and the final product was studied. The successful...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Schreinemachers, Christian [verfasserIn] Leinders, Gregory [verfasserIn] Modolo, Giuseppe [verfasserIn] Verwerft, Marc [verfasserIn] Binnemans, Koen [verfasserIn] Cardinaels, Thomas [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	Nuclear fuel fabrication Co-conversion Sol-gel Internal gelation GenIV

Übergeordnetes Werk:	Enthalten in: Journal of nuclear materials - Amsterdam [u.a.] : Elsevier Science, 1959, 535
Übergeordnetes Werk:	volume:535

DOI / URN:	10.1016/j.jnucmat.2020.152128

Katalog-ID:	ELV004248732

Internformat


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520			\|a The sol-gel route via internal gelation was applied for the production of Nd- and Ce-doped uranium dioxide microspheres. Trivalent and tetravalent Ce precursors were used and the influence of the precursors’ oxidation state on the fabrication process and the final product was studied. The successful introduction of the dopant into the 3UO3⋅2NH3⋅4H2O matrix of the dried gels, independent of the dopant and the oxidation state of its precursor, was demonstrated for Ln contents up to 30 mol%. Densities of the dried gels were determined and the particle volume shrinkage during the thermal treatment was investigated. X-ray powder diffraction analyses proved the presence of U1− y L n y O2±x single phase solid solutions for the sintered Nd-doped microspheres and Ce-doped microspheres prepared using the tetravalent precursor. For Ce-doped compositions prepared with the trivalent precursor, the presence of two solid solutions was observed for Ce contents > 15 mol%. The lattice parameters determined for the single phase solid solutions follow Vegard’s law and show a decreasing lattice parameter with increasing dopant content. In the case for the Nd-doped material different charge compensation mechanisms, depending on the dopant content, were observed. The conditions applied in this study allow the usage of a solution containing the gelation agents, resulting in a particle fabrication process for the production of Pu and/or minor actinide containing UO2 transmutation fuel, which has benefits in terms of automating and remote handling, leading to a better implementation in glove boxes or hot cells.
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700	1		\|a Leinders, Gregory \|e verfasserin \|4 aut
700	1		\|a Modolo, Giuseppe \|e verfasserin \|4 aut
700	1		\|a Verwerft, Marc \|e verfasserin \|4 aut
700	1		\|a Binnemans, Koen \|e verfasserin \|4 aut
700	1		\|a Cardinaels, Thomas \|e verfasserin \|4 aut
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936	b	k	\|a 51.40 \|j Werkstoffe für bestimmte Anwendungsgebiete
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Indexfelder

author_variant	c s cs g l gl g m gm m v mv k b kb t c tc
matchkey_str	schreinemacherschristianleindersgregorym:2020----:arctoonadeoeuaimixdmcopee
hierarchy_sort_str	2020
bklnumber	51.40 52.55 33.81 33.80
publishDate	2020
allfields	10.1016/j.jnucmat.2020.152128 doi (DE-627)ELV004248732 (ELSEVIER)S0022-3115(20)30026-X DE-627 ger DE-627 rda eng 530 620 DE-600 51.40 bkl 52.55 bkl 33.81 bkl 33.80 bkl Schreinemachers, Christian verfasserin aut Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The sol-gel route via internal gelation was applied for the production of Nd- and Ce-doped uranium dioxide microspheres. Trivalent and tetravalent Ce precursors were used and the influence of the precursors’ oxidation state on the fabrication process and the final product was studied. The successful introduction of the dopant into the 3UO3⋅2NH3⋅4H2O matrix of the dried gels, independent of the dopant and the oxidation state of its precursor, was demonstrated for Ln contents up to 30 mol%. Densities of the dried gels were determined and the particle volume shrinkage during the thermal treatment was investigated. X-ray powder diffraction analyses proved the presence of U1− y L n y O2±x single phase solid solutions for the sintered Nd-doped microspheres and Ce-doped microspheres prepared using the tetravalent precursor. For Ce-doped compositions prepared with the trivalent precursor, the presence of two solid solutions was observed for Ce contents > 15 mol%. The lattice parameters determined for the single phase solid solutions follow Vegard’s law and show a decreasing lattice parameter with increasing dopant content. In the case for the Nd-doped material different charge compensation mechanisms, depending on the dopant content, were observed. The conditions applied in this study allow the usage of a solution containing the gelation agents, resulting in a particle fabrication process for the production of Pu and/or minor actinide containing UO2 transmutation fuel, which has benefits in terms of automating and remote handling, leading to a better implementation in glove boxes or hot cells. Nuclear fuel fabrication Co-conversion Sol-gel Internal gelation GenIV Leinders, Gregory verfasserin aut Modolo, Giuseppe verfasserin aut Verwerft, Marc verfasserin aut Binnemans, Koen verfasserin aut Cardinaels, Thomas verfasserin aut Enthalten in Journal of nuclear materials Amsterdam [u.a.] : Elsevier Science, 1959 535 Online-Ressource (DE-627)320410730 (DE-600)2001279-2 (DE-576)251938174 nnns volume:535 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.40 Werkstoffe für bestimmte Anwendungsgebiete 52.55 Kerntechnik Reaktortechnik 33.81 Kernfusion 33.80 Plasmaphysik AR 535
spelling	10.1016/j.jnucmat.2020.152128 doi (DE-627)ELV004248732 (ELSEVIER)S0022-3115(20)30026-X DE-627 ger DE-627 rda eng 530 620 DE-600 51.40 bkl 52.55 bkl 33.81 bkl 33.80 bkl Schreinemachers, Christian verfasserin aut Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The sol-gel route via internal gelation was applied for the production of Nd- and Ce-doped uranium dioxide microspheres. Trivalent and tetravalent Ce precursors were used and the influence of the precursors’ oxidation state on the fabrication process and the final product was studied. The successful introduction of the dopant into the 3UO3⋅2NH3⋅4H2O matrix of the dried gels, independent of the dopant and the oxidation state of its precursor, was demonstrated for Ln contents up to 30 mol%. Densities of the dried gels were determined and the particle volume shrinkage during the thermal treatment was investigated. X-ray powder diffraction analyses proved the presence of U1− y L n y O2±x single phase solid solutions for the sintered Nd-doped microspheres and Ce-doped microspheres prepared using the tetravalent precursor. For Ce-doped compositions prepared with the trivalent precursor, the presence of two solid solutions was observed for Ce contents > 15 mol%. The lattice parameters determined for the single phase solid solutions follow Vegard’s law and show a decreasing lattice parameter with increasing dopant content. In the case for the Nd-doped material different charge compensation mechanisms, depending on the dopant content, were observed. The conditions applied in this study allow the usage of a solution containing the gelation agents, resulting in a particle fabrication process for the production of Pu and/or minor actinide containing UO2 transmutation fuel, which has benefits in terms of automating and remote handling, leading to a better implementation in glove boxes or hot cells. Nuclear fuel fabrication Co-conversion Sol-gel Internal gelation GenIV Leinders, Gregory verfasserin aut Modolo, Giuseppe verfasserin aut Verwerft, Marc verfasserin aut Binnemans, Koen verfasserin aut Cardinaels, Thomas verfasserin aut Enthalten in Journal of nuclear materials Amsterdam [u.a.] : Elsevier Science, 1959 535 Online-Ressource (DE-627)320410730 (DE-600)2001279-2 (DE-576)251938174 nnns volume:535 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.40 Werkstoffe für bestimmte Anwendungsgebiete 52.55 Kerntechnik Reaktortechnik 33.81 Kernfusion 33.80 Plasmaphysik AR 535
allfields_unstemmed	10.1016/j.jnucmat.2020.152128 doi (DE-627)ELV004248732 (ELSEVIER)S0022-3115(20)30026-X DE-627 ger DE-627 rda eng 530 620 DE-600 51.40 bkl 52.55 bkl 33.81 bkl 33.80 bkl Schreinemachers, Christian verfasserin aut Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The sol-gel route via internal gelation was applied for the production of Nd- and Ce-doped uranium dioxide microspheres. Trivalent and tetravalent Ce precursors were used and the influence of the precursors’ oxidation state on the fabrication process and the final product was studied. The successful introduction of the dopant into the 3UO3⋅2NH3⋅4H2O matrix of the dried gels, independent of the dopant and the oxidation state of its precursor, was demonstrated for Ln contents up to 30 mol%. Densities of the dried gels were determined and the particle volume shrinkage during the thermal treatment was investigated. X-ray powder diffraction analyses proved the presence of U1− y L n y O2±x single phase solid solutions for the sintered Nd-doped microspheres and Ce-doped microspheres prepared using the tetravalent precursor. For Ce-doped compositions prepared with the trivalent precursor, the presence of two solid solutions was observed for Ce contents > 15 mol%. The lattice parameters determined for the single phase solid solutions follow Vegard’s law and show a decreasing lattice parameter with increasing dopant content. In the case for the Nd-doped material different charge compensation mechanisms, depending on the dopant content, were observed. The conditions applied in this study allow the usage of a solution containing the gelation agents, resulting in a particle fabrication process for the production of Pu and/or minor actinide containing UO2 transmutation fuel, which has benefits in terms of automating and remote handling, leading to a better implementation in glove boxes or hot cells. Nuclear fuel fabrication Co-conversion Sol-gel Internal gelation GenIV Leinders, Gregory verfasserin aut Modolo, Giuseppe verfasserin aut Verwerft, Marc verfasserin aut Binnemans, Koen verfasserin aut Cardinaels, Thomas verfasserin aut Enthalten in Journal of nuclear materials Amsterdam [u.a.] : Elsevier Science, 1959 535 Online-Ressource (DE-627)320410730 (DE-600)2001279-2 (DE-576)251938174 nnns volume:535 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.40 Werkstoffe für bestimmte Anwendungsgebiete 52.55 Kerntechnik Reaktortechnik 33.81 Kernfusion 33.80 Plasmaphysik AR 535
allfieldsGer	10.1016/j.jnucmat.2020.152128 doi (DE-627)ELV004248732 (ELSEVIER)S0022-3115(20)30026-X DE-627 ger DE-627 rda eng 530 620 DE-600 51.40 bkl 52.55 bkl 33.81 bkl 33.80 bkl Schreinemachers, Christian verfasserin aut Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The sol-gel route via internal gelation was applied for the production of Nd- and Ce-doped uranium dioxide microspheres. Trivalent and tetravalent Ce precursors were used and the influence of the precursors’ oxidation state on the fabrication process and the final product was studied. The successful introduction of the dopant into the 3UO3⋅2NH3⋅4H2O matrix of the dried gels, independent of the dopant and the oxidation state of its precursor, was demonstrated for Ln contents up to 30 mol%. Densities of the dried gels were determined and the particle volume shrinkage during the thermal treatment was investigated. X-ray powder diffraction analyses proved the presence of U1− y L n y O2±x single phase solid solutions for the sintered Nd-doped microspheres and Ce-doped microspheres prepared using the tetravalent precursor. For Ce-doped compositions prepared with the trivalent precursor, the presence of two solid solutions was observed for Ce contents > 15 mol%. The lattice parameters determined for the single phase solid solutions follow Vegard’s law and show a decreasing lattice parameter with increasing dopant content. In the case for the Nd-doped material different charge compensation mechanisms, depending on the dopant content, were observed. The conditions applied in this study allow the usage of a solution containing the gelation agents, resulting in a particle fabrication process for the production of Pu and/or minor actinide containing UO2 transmutation fuel, which has benefits in terms of automating and remote handling, leading to a better implementation in glove boxes or hot cells. Nuclear fuel fabrication Co-conversion Sol-gel Internal gelation GenIV Leinders, Gregory verfasserin aut Modolo, Giuseppe verfasserin aut Verwerft, Marc verfasserin aut Binnemans, Koen verfasserin aut Cardinaels, Thomas verfasserin aut Enthalten in Journal of nuclear materials Amsterdam [u.a.] : Elsevier Science, 1959 535 Online-Ressource (DE-627)320410730 (DE-600)2001279-2 (DE-576)251938174 nnns volume:535 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.40 Werkstoffe für bestimmte Anwendungsgebiete 52.55 Kerntechnik Reaktortechnik 33.81 Kernfusion 33.80 Plasmaphysik AR 535
allfieldsSound	10.1016/j.jnucmat.2020.152128 doi (DE-627)ELV004248732 (ELSEVIER)S0022-3115(20)30026-X DE-627 ger DE-627 rda eng 530 620 DE-600 51.40 bkl 52.55 bkl 33.81 bkl 33.80 bkl Schreinemachers, Christian verfasserin aut Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The sol-gel route via internal gelation was applied for the production of Nd- and Ce-doped uranium dioxide microspheres. Trivalent and tetravalent Ce precursors were used and the influence of the precursors’ oxidation state on the fabrication process and the final product was studied. The successful introduction of the dopant into the 3UO3⋅2NH3⋅4H2O matrix of the dried gels, independent of the dopant and the oxidation state of its precursor, was demonstrated for Ln contents up to 30 mol%. Densities of the dried gels were determined and the particle volume shrinkage during the thermal treatment was investigated. X-ray powder diffraction analyses proved the presence of U1− y L n y O2±x single phase solid solutions for the sintered Nd-doped microspheres and Ce-doped microspheres prepared using the tetravalent precursor. For Ce-doped compositions prepared with the trivalent precursor, the presence of two solid solutions was observed for Ce contents > 15 mol%. The lattice parameters determined for the single phase solid solutions follow Vegard’s law and show a decreasing lattice parameter with increasing dopant content. In the case for the Nd-doped material different charge compensation mechanisms, depending on the dopant content, were observed. The conditions applied in this study allow the usage of a solution containing the gelation agents, resulting in a particle fabrication process for the production of Pu and/or minor actinide containing UO2 transmutation fuel, which has benefits in terms of automating and remote handling, leading to a better implementation in glove boxes or hot cells. Nuclear fuel fabrication Co-conversion Sol-gel Internal gelation GenIV Leinders, Gregory verfasserin aut Modolo, Giuseppe verfasserin aut Verwerft, Marc verfasserin aut Binnemans, Koen verfasserin aut Cardinaels, Thomas verfasserin aut Enthalten in Journal of nuclear materials Amsterdam [u.a.] : Elsevier Science, 1959 535 Online-Ressource (DE-627)320410730 (DE-600)2001279-2 (DE-576)251938174 nnns volume:535 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.40 Werkstoffe für bestimmte Anwendungsgebiete 52.55 Kerntechnik Reaktortechnik 33.81 Kernfusion 33.80 Plasmaphysik AR 535
language	English
source	Enthalten in Journal of nuclear materials 535 volume:535
sourceStr	Enthalten in Journal of nuclear materials 535 volume:535
format_phy_str_mv	Article
bklname	Werkstoffe für bestimmte Anwendungsgebiete Kerntechnik Reaktortechnik Kernfusion Plasmaphysik
institution	findex.gbv.de
topic_facet	Nuclear fuel fabrication Co-conversion Sol-gel Internal gelation GenIV
dewey-raw	530
isfreeaccess_bool	false
container_title	Journal of nuclear materials
authorswithroles_txt_mv	Schreinemachers, Christian @@aut@@ Leinders, Gregory @@aut@@ Modolo, Giuseppe @@aut@@ Verwerft, Marc @@aut@@ Binnemans, Koen @@aut@@ Cardinaels, Thomas @@aut@@
publishDateDaySort_date	2020-01-01T00:00:00Z
hierarchy_top_id	320410730
dewey-sort	3530
id	ELV004248732
language_de	englisch
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author	Schreinemachers, Christian
spellingShingle	Schreinemachers, Christian ddc 530 bkl 51.40 bkl 52.55 bkl 33.81 bkl 33.80 misc Nuclear fuel fabrication misc Co-conversion misc Sol-gel misc Internal gelation misc GenIV Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation
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topic_title	530 620 DE-600 51.40 bkl 52.55 bkl 33.81 bkl 33.80 bkl Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation Nuclear fuel fabrication Co-conversion Sol-gel Internal gelation GenIV
topic	ddc 530 bkl 51.40 bkl 52.55 bkl 33.81 bkl 33.80 misc Nuclear fuel fabrication misc Co-conversion misc Sol-gel misc Internal gelation misc GenIV
topic_unstemmed	ddc 530 bkl 51.40 bkl 52.55 bkl 33.81 bkl 33.80 misc Nuclear fuel fabrication misc Co-conversion misc Sol-gel misc Internal gelation misc GenIV
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title	Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation
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title_full	Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation
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author_browse	Schreinemachers, Christian Leinders, Gregory Modolo, Giuseppe Verwerft, Marc Binnemans, Koen Cardinaels, Thomas
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doi_str_mv	10.1016/j.jnucmat.2020.152128
dewey-full	530 620
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title_sort	fabrication of nd- and ce-doped uranium dioxide microspheres via internal gelation
title_auth	Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation
abstract	The sol-gel route via internal gelation was applied for the production of Nd- and Ce-doped uranium dioxide microspheres. Trivalent and tetravalent Ce precursors were used and the influence of the precursors’ oxidation state on the fabrication process and the final product was studied. The successful introduction of the dopant into the 3UO3⋅2NH3⋅4H2O matrix of the dried gels, independent of the dopant and the oxidation state of its precursor, was demonstrated for Ln contents up to 30 mol%. Densities of the dried gels were determined and the particle volume shrinkage during the thermal treatment was investigated. X-ray powder diffraction analyses proved the presence of U1− y L n y O2±x single phase solid solutions for the sintered Nd-doped microspheres and Ce-doped microspheres prepared using the tetravalent precursor. For Ce-doped compositions prepared with the trivalent precursor, the presence of two solid solutions was observed for Ce contents > 15 mol%. The lattice parameters determined for the single phase solid solutions follow Vegard’s law and show a decreasing lattice parameter with increasing dopant content. In the case for the Nd-doped material different charge compensation mechanisms, depending on the dopant content, were observed. The conditions applied in this study allow the usage of a solution containing the gelation agents, resulting in a particle fabrication process for the production of Pu and/or minor actinide containing UO2 transmutation fuel, which has benefits in terms of automating and remote handling, leading to a better implementation in glove boxes or hot cells.
abstractGer	The sol-gel route via internal gelation was applied for the production of Nd- and Ce-doped uranium dioxide microspheres. Trivalent and tetravalent Ce precursors were used and the influence of the precursors’ oxidation state on the fabrication process and the final product was studied. The successful introduction of the dopant into the 3UO3⋅2NH3⋅4H2O matrix of the dried gels, independent of the dopant and the oxidation state of its precursor, was demonstrated for Ln contents up to 30 mol%. Densities of the dried gels were determined and the particle volume shrinkage during the thermal treatment was investigated. X-ray powder diffraction analyses proved the presence of U1− y L n y O2±x single phase solid solutions for the sintered Nd-doped microspheres and Ce-doped microspheres prepared using the tetravalent precursor. For Ce-doped compositions prepared with the trivalent precursor, the presence of two solid solutions was observed for Ce contents > 15 mol%. The lattice parameters determined for the single phase solid solutions follow Vegard’s law and show a decreasing lattice parameter with increasing dopant content. In the case for the Nd-doped material different charge compensation mechanisms, depending on the dopant content, were observed. The conditions applied in this study allow the usage of a solution containing the gelation agents, resulting in a particle fabrication process for the production of Pu and/or minor actinide containing UO2 transmutation fuel, which has benefits in terms of automating and remote handling, leading to a better implementation in glove boxes or hot cells.
abstract_unstemmed	The sol-gel route via internal gelation was applied for the production of Nd- and Ce-doped uranium dioxide microspheres. Trivalent and tetravalent Ce precursors were used and the influence of the precursors’ oxidation state on the fabrication process and the final product was studied. The successful introduction of the dopant into the 3UO3⋅2NH3⋅4H2O matrix of the dried gels, independent of the dopant and the oxidation state of its precursor, was demonstrated for Ln contents up to 30 mol%. Densities of the dried gels were determined and the particle volume shrinkage during the thermal treatment was investigated. X-ray powder diffraction analyses proved the presence of U1− y L n y O2±x single phase solid solutions for the sintered Nd-doped microspheres and Ce-doped microspheres prepared using the tetravalent precursor. For Ce-doped compositions prepared with the trivalent precursor, the presence of two solid solutions was observed for Ce contents > 15 mol%. The lattice parameters determined for the single phase solid solutions follow Vegard’s law and show a decreasing lattice parameter with increasing dopant content. In the case for the Nd-doped material different charge compensation mechanisms, depending on the dopant content, were observed. The conditions applied in this study allow the usage of a solution containing the gelation agents, resulting in a particle fabrication process for the production of Pu and/or minor actinide containing UO2 transmutation fuel, which has benefits in terms of automating and remote handling, leading to a better implementation in glove boxes or hot cells.
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title_short	Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation
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author2	Leinders, Gregory Modolo, Giuseppe Verwerft, Marc Binnemans, Koen Cardinaels, Thomas
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up_date	2024-07-06T22:21:20.620Z
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Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation

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