Hydrogen permeation through disordered nanostructured tungsten films (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Hydrogen permeation through disordered nanostructured tungsten films (Articolo in rivista) (literal)

Anno

• 2012-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/j.jnucmat.2012.05.031 (literal)

Alternative label

• Nemanic, V [ 1 ] ; Zajec, B [ 1 ] ; Dellasega, D [ 2,3 ] ; Passoni, M [ 2,3 ] (2012)
  Hydrogen permeation through disordered nanostructured tungsten films
  in Plasma physics and controlled fusion (Online); Elsevier, Amsterdam (Paesi Bassi)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Nemanic, V [ 1 ] ; Zajec, B [ 1 ] ; Dellasega, D [ 2,3 ] ; Passoni, M [ 2,3 ] (literal)

Pagina inizio

• 92 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.sciencedirect.com/science/article/pii/S0022311512002620 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 429 (literal)

Rivista

• Plasma physics and controlled fusion (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• [ 1 ] Jozef Stefan Inst, Ljubljana 1000, Slovenia [ 2 ] Politecn Milan, Dipartimento Energia, I-20133 Milan, Italy [ 3 ] IFP CNR, Assoc EURATOM ENEA, I-20125 Milan, Italy (literal)

Titolo

• Hydrogen permeation through disordered nanostructured tungsten films (literal)

Abstract

• We report results on long-term hydrogen outgassing and permeation studies of structurally highly disordered tungsten films, deposited on 40 mm diameter highly permeable Eurofer substrates, using the Pulsed Laser Deposition technique. Hydrogen interaction with tungsten is becoming a highly relevant topic since tungsten was recognized as the most promising candidate for the first wall of future fusion reactors. Prediction of hydrogen isotopes migration and their abundance after plasma exposure is uncertain due to a great role played by structural disorder that is formed on the W surface. Vacancy sites are theoretically predicted to trap multiple H atoms exothermically, but their density and their potential influence on permeability has not been experimentally investigated yet. In our work, permeability of W films having different thicknesses (1 and 10 mu m) was initially extremely low, and was gradually increasing over a several-day campaign. The final values at 400 degrees C, lying between P=1.46 x 10(-15) mol H-2/(m s Pa-0.5) and P=4.8 x 10(-15) mol H-2/(m s Pa-0.5), were substantially lower than those known for well ordered films. Surprisingly, the 10 mu m thick W film initially contained a very high amount of hydrogen, similar to 0.1 H/W, which was gradually releasing during the twenty-day campaign. (C) 2012 Elsevier B.V. All rights reserved (literal)

Editore

• Elsevier (Editore)

Prodotto di

• Sviluppo di Impianti e Strumentazione per i Plasmi e per la Fusione Termonucleare (ET.P05.002.001) (Modulo)
• Istituto di fisica del plasma \"Piero Caldirola\" (IFP) (Istituto)

Autore CNR

• DAVID DELLASEGA (Unità di personale esterno)
• MATTEO PASSONI (Unità di personale esterno)

Incoming links:

Prodotto

• Istituto di fisica del plasma \"Piero Caldirola\" (IFP) (Istituto)
• Sviluppo di Impianti e Strumentazione per i Plasmi e per la Fusione Termonucleare (ET.P05.002.001) (Modulo)

Autore CNR di

• DAVID DELLASEGA (Unità di personale esterno)
• MATTEO PASSONI (Unità di personale esterno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Plasma physics and controlled fusion (Rivista)

Editore di

• Elsevier (Editore)