Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
WC-Cu thermal barriers for fusion applications
Año:2018
Áreas de investigación
  • Ingenierías
Datos
Descripción
WC-Cu cermets have been devised for thermal barriers between the plasma facing tungsten tiles and the copper-based heat sink in the first wall of nuclear fusion reactors. Composite materials with 50 and 75?v/v% WC have been prepared by hot pressing at 1333 and 1423?K with pressures of 37 and 47?MPa, respectively. Microstructural changes have been investigated by scanning electron microscopy coupled with energy dispersive X-ray spectroscopy and X-ray diffraction. The materials consolidated have also been evaluated in terms of Archimedes' density, thermal diffusivity, Vickers hardness and elastic modulus. Implantation was carried out at room temperature with Ar+ at 100?keV ion beam with a fluence of 4?·?1020?at/m2. The materials consisted of homogeneous dispersions of WC particles in a Cu matrix and presented densifications of about 90%. Incipient swelling in copper-rich regions have been observed on the implanted surfaces, however no significant changes have been detected by X-ray diffraction. Higher WC content in the cermet materials increased hardness and the elastic modulus. The cermets' thermal diffusivity was significantly lower than that of pure copper or tungsten, as desirable for a thermal barrier.
Internacional
Si
JCR del ISI
Si
Título de la revista
Surface & Coatings Technology
ISSN
0257-8972
Factor de impacto JCR
2,589
Información de impacto
Datos JCR del año 2016
Volumen
In Press,
DOI
10.1016/j.surfcoat.2018.02.086
Número de revista
-
Desde la página
1
Hasta la página
5
Mes
FEBRERO
Ranking
4/19 (Impact factor: 2,589) en MATERIALS SCIENCE, COATINGS & FILMS
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: M. Dias
  • Autor: F. Guerreiro
  • Autor: Elena Maria Tejado Garrido (UPM)
  • Autor: J.B. Correia
  • Autor: U.V. Mardolcar
  • Autor: M. Coelho
  • Autor: Teresa Palacios Garcia (UPM)
  • Autor: Jose Ygnacio Pastor Caño (UPM)
  • Autor: P. A. Carvalho
  • Autor: E. Alves
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Centro o Instituto I+D+i: CENTRO INVEST. MATERIALES ESTRUCTURALES (CIME)
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)