Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/2436
Título: Elemental interdiffusion in W-Ta composites developed for fusion applications
Autor: Mateus, R.
Dias, M.
Livramento, Vanessa
Nunes, D.
Carvalho, P. A.
Hanada, K.
Correia, J. Brito
Palavras-chave: Tungsten
Data: 2013
Editora: Cambridge University Press
Citação: Mateus, R.; Dias, M.; Livramento, V.; Nunes, D.; Carvalho, P.A.; Hanada, K.; Correia, J.B. Elemental interdiffusion in W-Ta composites developed for fusion applications. In: Microscopy and Microanalysis, 2013, Vol. 19, Suppl. 4, p. 123-124
Resumo: Tungsten (W) was select for an extensive use in nuclear fusion devices due to its low neutron activation, high melting point and sputtering threshold as well as low hydrogen inventory. Nevertheless, W is brittle at low and moderate temperatures, which results in abnormal thermal stress, component fracture and extra erosion under reactor operation due to inherent thermal cycling events. An attractive way to solve these problems involves the addition of other refractory metals in the W matrix and tantalum (Ta) is a natural candidate. It has a high ductility, toughness and radiation resistance relative to those of W and transmutes to W by high-energy neutron irradiation. Recently, IST proposed the production of W-Ta composite by mechanical synthesis.
URI: http://hdl.handle.net/10400.9/2436
ISSN: 1431-9276
Versão do Editor: http://dx.doi.org/10.1017/S1431927613001232
Aparece nas colecções:ES - Artigos em revistas internacionais

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