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Molten fluorides for nuclear applications / Sylvie Delpech in Materials today, Vol. 13 N° 12 (Décembre 2010) 

Public ISBD [article]  in Materials today > Vol. 13 N° 12 (Décembre 2010) . - pp. 34-41 Titre : Molten fluorides for nuclear applications Type de document : texte imprimé Auteurs : Sylvie Delpech, Auteur ; Céline Cabet, Auteur ; Cyrine Slim, Auteur Année de publication : 2011 Article en page(s) : pp. 34-41 Note générale : Ingénierie Langues : Anglais (eng) Mots-clés : Fluoride  molten  salts  Heat  transfer  Metallic  materials  Corrosion  Nuclear  applications Index. décimale : 620 Essais des matériaux. Matériaux commerciaux. Station génératrice d'énergie. Economie de l'énergie Résumé : The importance of pyrochemistry is being increasingly acknowledged and becomes unavoidable in the nuclear field. Molten salts may be used for fuel processing and spent fuel recycling, for heat transfer, as a homogeneous fuel and as a breeder material in fusion systems. Fluorides that are stable at high temperature and under high neutron flux are especially promising. Analysis of several field cases reveals that corrosion in molten fluorides is essentially due to the oxidation of metals by uranium fluoride and/or oxidizing impurities. The thermodynamics of this process are discussed with an emphasis on understanding the mass transfer in the systems, selecting appropriate metallic materials and designing effective purification methods. DEWEY : 620 ISSN : 1369-7021 En ligne : http://www.sciencedirect.com/science/article/pii/S1369702110702224 [article] Molten fluorides for nuclear applications [texte imprimé] / Sylvie Delpech, Auteur ; Céline Cabet, Auteur ; Cyrine Slim, Auteur . - 2011 . - pp. 34-41. Ingénierie Langues : Anglais (eng) in Materials today > Vol. 13 N° 12 (Décembre 2010) . - pp. 34-41 Mots-clés : Fluoride  molten  salts  Heat  transfer  Metallic  materials  Corrosion  Nuclear  applications Index. décimale : 620 Essais des matériaux. Matériaux commerciaux. Station génératrice d'énergie. Economie de l'énergie Résumé : The importance of pyrochemistry is being increasingly acknowledged and becomes unavoidable in the nuclear field. Molten salts may be used for fuel processing and spent fuel recycling, for heat transfer, as a homogeneous fuel and as a breeder material in fusion systems. Fluorides that are stable at high temperature and under high neutron flux are especially promising. Analysis of several field cases reveals that corrosion in molten fluorides is essentially due to the oxidation of metals by uranium fluoride and/or oxidizing impurities. The thermodynamics of this process are discussed with an emphasis on understanding the mass transfer in the systems, selecting appropriate metallic materials and designing effective purification methods. DEWEY : 620 ISSN : 1369-7021 En ligne : http://www.sciencedirect.com/science/article/pii/S1369702110702224