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Descripción
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| The study and understanding of the diffusion and retention of light atoms (H, D, He) which are produced by transmutation in the materials to be used in future nuclear reactors is crucial in order to develop materials with improved properties, thus with a higher radiation resistance. One present alternative to delay the appearance of blistering and exfoliation effects is the use of ultrafine grained materials with a grain size in the nanometer range. The behaviour of these materials under irradiation is very much dominated by the large density of grains boundaries which act (i) as annihilation centre for Frenkel pairs (self?healing behaviour) and (ii) as pinning centres for hydrogen. These two facts drive to delay (shift to higher irradiation fluences) the formation of overpressurized bubbles. Moreover, since the trap energy for light species at the grain boundaries is smaller than that at the radiation?induced defects, grain boundaries may favour the light species release, performing as effective diffusion panels. | |
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Internacional
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Si |
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Nombre congreso
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16th International Conference on Emerging Nuclear Energy Systems (ICENES 2013) |
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Tipo de participación
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960 |
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Lugar del congreso
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Madrid, Spain |
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Revisores
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Si |
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ISBN o ISSN
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0000-0000 |
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DOI
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Fecha inicio congreso
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26/05/2013 |
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Fecha fin congreso
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30/05/2013 |
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Desde la página
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1 |
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Hasta la página
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1 |
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Título de las actas
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Proceedings |