Observatorio de I+D+i UPM

Descripción
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.
Internacional	Si
Nombre congreso	16th International Conference on Emerging Nuclear Energy Systems (ICENES 2013)
Tipo de participación	960
Lugar del congreso	Madrid, Spain
Revisores	Si
ISBN o ISSN	0000-0000
DOI
Fecha inicio congreso	26/05/2013
Fecha fin congreso	30/05/2013
Desde la página	1
Hasta la página	1
Título de las actas	Proceedings

Esta actividad pertenece a memorias de investigación

• Autor: M. Panizo-Laíz (Instituto de Fusión Nuclear, UPM)
• Autor: Nuria Gordillo Garcia (UPM)
• Autor: Raquel Gonzalez Arrabal (UPM)
• Autor: I. Fernández-Martínez (Instituto de Energía Solar)
• Autor: Antonio Juan Rivera de Mena (UPM)
• Autor: F. Briones (Instituto de Microelectrónica de Madrid)
• Autor: F. Munnik (5Helmholtz¿Zentrum Dresden¿Rossendorf)
• Autor: E. Tejado (Departamento de Ciencia de Materiales CISDEM, ETSI de Caminos)
• Autor: J.Y. Pastor (Departamento de Ciencia de Materiales CISDEM, ETSI de Caminos)
• Autor: Jose Manuel Perlado Martin (UPM)

• Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
• Centro o Instituto I+D+i: Instituto de Fusión Nuclear
• Departamento: Ingeniería Nuclear