Published 1990
| Version v1
Miscellaneous
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Preparation methods of U3O8 powder for MTR fuel elements
Creators
- 1. Instituto de Pesquisas Energeticas e Nucleares, Sao Paulo, SP (Brazil)
Description
Three preparation methods of U3O8 powder have been studied with the aim of finding a simple and economic processing route: grinding of sintered U3O8 pellets (Method-1); sintering of U3O8 calcined granules (Method-2); and sintering of ammonium diuranate (ADU) granules (Method-3). Granulometric yield, powder characteristics and processing steps and difficulties have been taken into account for comparison purposes. Method-2 have been found to give the best results. Method-3 gives also good results, but there were some difficulties with ADU handling. (author)
Abstract (Portuguese)
Com o objetivo de se adotar uma linha simples e economica de processamento de po de U3O8, tres metodos de obtencao foram estudados: trituracao de pastilhas sinterizadas de U3O8 (Metodo-1); sinterizacao de granulos de U3O8 calcinado (Metodo-2); e sinterizacao de granulos de diuranato de amonio, DUA (Metodo-3). O rendimento granulometrico, as caracteristicas dos pos obtidos, a extensao e as dificuldades de processamento foram considerados como parametros de comparacao dos metodos. O Metodo-2 foi o que produziu os melhores resultados. O Metodo-3 tambem produziu bons resultados, porem com dificuldades de manuseio do DUA. (autor)Files
21086127.pdf
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Additional details
Additional titles
- Original title (Portuguese)
- Metodos de obtencao de po de U
Publishing Information
- Imprint Title
- Proceedings of the 34. Brazilian Congress on Ceramics. v. 1
- Imprint Pagination
- 341 p.
- Journal Page Range
- p. 288-295.
- Report number
- INIS-BR--2255
Conference
- Title
- 34. Brazilian Congress on Ceramics.
- Dates
- 20-23 May 1990.
- Place
- Blumenau, SC (Brazil).
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 21086127
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ADU; MTR REACTOR; POWDERS; SINTERING; URANIUM OXIDES U3O8
- Descriptors DEC
- ACTINIDE COMPOUNDS; AMMONIUM COMPOUNDS; AMMONIUM URANATES; CHALCOGENIDES; ENRICHED URANIUM REACTORS; FABRICATION; IRRADIATION REACTORS; MATERIALS TESTING REACTORS; OXIDES; OXYGEN COMPOUNDS; REACTORS; TANK TYPE REACTORS; THERMAL REACTORS; URANATES; URANIUM COMPOUNDS; URANIUM OXIDES; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Notes
- Imprint:Anais do 34. Congresso Brasileiro de Ceramica. v. 1.