Estudio comparativo entre la difusión de Uranio en Zry-4 y en Zr-α puro
Throughout the α-spectrometry U diffusion in pure Zry-4 was studied and compared with pure α-Zr in the temperature range 843-1093 K in order to analyze the diffusion process in both matrices. D values are syste-matically higher in Zry-4 and its temperature dependence obeys the Arrhenius law being: D...
| Autores: | , , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2018 |
| País: | Argentina |
| Recursos: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositório: | CONICET Digital (CONICET) |
| Idioma: | espanhol |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/117543 |
| Acesso em linha: | http://hdl.handle.net/11336/117543 |
| Access Level: | Acceso aberto |
| Palavra-chave: | DIFFUSION ALPHA-SPECTROMETRY URANIUM ZIRCONIUM ZIRCALOY https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 |
| Resumo: | Throughout the α-spectrometry U diffusion in pure Zry-4 was studied and compared with pure α-Zr in the temperature range 843-1093 K in order to analyze the diffusion process in both matrices. D values are syste-matically higher in Zry-4 and its temperature dependence obeys the Arrhenius law being: D0 = (3,2 ± 1,1) m2/s and Q = (316 ± 9) kJ mol-1, whereas in α-Zr U diffusion present an apart to this law, consistent in a downward curvature in the ln(D) vs 1/T plot. Below 873 K U solubility in Zry4 is lower than in pure Zr. |
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