Manufacturing high-uranium-loaded dispersion fuel plates in Brazil

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dc.contributor.authorDURAZZO, MICHELANGELO
dc.contributor.authorSOUZA, JOSE A.B.
dc.contributor.authorCARVALHO, ELITA F.U. de
dc.contributor.authorRESTIVO, THOMAZ A.G.
dc.contributor.authorGENEZINI, FREDERICO A.
dc.contributor.authorLEAL NETO, RICARDO M.
dc.coverageInternacional
dc.date.accessioned2024-04-04T16:12:38Z
dc.date.available2024-04-04T16:12:38Z
dc.date.issued2024
dc.description.abstractThe Nuclear and Energy Research Institute (IPEN-CNEN/SP) has developed and made available for routine production the technology for manufacturing dispersion-type fuel elements for research reactors. However, the fuel produced is limited to a uranium loading of 2.3 gU/cm3 (U3O8) or 3.0 gU/cm3 (U3Si2). To reduce Brazil’s dependence on foreign sources of Mo-99, the Brazilian government plans to construct a new research reactor, the 30 MW open pool Brazilian Multipurpose Reactor (RMB), which will mainly produce domestic Mo-99. Low-enriched uranium fuel will be used in the RMB, and increasing uranium loading will be important to increase the reactor core’s reactivity and fuel life. Uranium loadings of 3.2 gU/cm3 for the U3O8-Al and 4.8 gU/cm3 for the U3Si2-Al are considered the technological limit and have been well demonstrated worldwide. This work aimed to study the manufacturing process of these two highly uranium-loaded dispersion fuels and redefine current procedures. Additionally, UMo-Al dispersion fuel has been extensively studied globally and is likely to be the next commercially available technology. This new fuel utilizes a dispersion of UMo alloy with 7–10 wt% Mo, resulting in a uranium loading between 6 and 8 gU/cm3. We also studied this fuel type for potential use in the RMB research reactor. This work outlines the primary procedures for manufacturing these three types of fuels and the necessary adjustments to IPEN-CNEN/SP current technology. The manufacturing process proved to be well adapted to these new fuels, requiring only minor modifications. A comparison was made of the microstructures of fuel plate meat using three types of uranium compounds. The microstructures of U3Si2-Al and U10Mo-Al dispersions were found to be adequate, while that of U3O8-Al meat deviated significantly from the concept of an ideal dispersion.
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIDCNPq: 309826/2021-7
dc.description.sponsorshipIDFAPESP: 21/14331-5; 11/13849-9; 07/50018-2; 07/07769-7
dc.format.extent1-14
dc.identifier.citationDURAZZO, MICHELANGELO; SOUZA, JOSE A.B.; CARVALHO, ELITA F.U. de; RESTIVO, THOMAZ A.G.; GENEZINI, FREDERICO A.; LEAL NETO, RICARDO M. Manufacturing high-uranium-loaded dispersion fuel plates in Brazil. <b>Annals of Nuclear Energy</b>, v. 200, p. 1-14, 2024. DOI: <a href="https://dx.doi.org/10.1016/j.anucene.2024.110408">10.1016/j.anucene.2024.110408</a>. Disponível em: https://repositorio.ipen.br/handle/123456789/48009.
dc.identifier.doi10.1016/j.anucene.2024.110408
dc.identifier.issn0306-4549
dc.identifier.orcidhttps://orcid.org/0000-0002-2147-8295
dc.identifier.orcidhttps://orcid.org/0000-0001-8542-3827
dc.identifier.orcidhttps://orcid.org/0000-0002-6318-6805
dc.identifier.orcidhttps://orcid.org/0000-0001-5104-7392
dc.identifier.percentilfi69.1
dc.identifier.percentilfiCiteScore65.00
dc.identifier.urihttps://repositorio.ipen.br/handle/123456789/48009
dc.identifier.vol200
dc.relation.ispartofAnnals of Nuclear Energy
dc.rightsopenAccess
dc.subjectfuel elements
dc.subjectfuel plates
dc.subjectnuclear fuels
dc.subjectresearch reactors
dc.subjecturanium silicides
dc.subjectdispersions
dc.subjectfabrication
dc.titleManufacturing high-uranium-loaded dispersion fuel plates in Brazil
dc.typeArtigo de periódico
dspace.entity.typePublication
ipen.autorMICHELANGELO DURAZZO
ipen.autorJOSE ANTONIO BATISTA DE SOUZA
ipen.autorELITA FONTENELE URANO DE CARVALHO
ipen.autorFREDERICO ANTONIO GENEZINI
ipen.autorRICARDO MENDES LEAL NETO
ipen.codigoautor90
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ipen.codigoautor2045
ipen.codigoautor520
ipen.contributor.ipenauthorMICHELANGELO DURAZZO
ipen.contributor.ipenauthorJOSE ANTONIO BATISTA DE SOUZA
ipen.contributor.ipenauthorELITA FONTENELE URANO DE CARVALHO
ipen.contributor.ipenauthorFREDERICO ANTONIO GENEZINI
ipen.contributor.ipenauthorRICARDO MENDES LEAL NETO
ipen.identifier.fi1.9
ipen.identifier.fiCiteScore3.6
ipen.identifier.ipendoc29863
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ipen.type.genreArtigo
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sigepi.autor.atividadeMICHELANGELO DURAZZO:90:410:S
sigepi.autor.atividadeJOSE ANTONIO BATISTA DE SOUZA:1274:410:N
sigepi.autor.atividadeELITA FONTENELE URANO DE CARVALHO:895:410:N
sigepi.autor.atividadeFREDERICO ANTONIO GENEZINI:2045:310:N
sigepi.autor.atividadeRICARDO MENDES LEAL NETO:520:730:N
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