Partager

Transfert de chaleur à partir d'une plaque de cuivre chimiquement oxydée ou anodisée vers de l'hélium liquide.

Heat transfer from a chemically oxidized or anodized copper plate to liquid helium.

Auteurs : CHEN Q., GAO B., CHEN J., et al.

Type d'article : Article

Résumé

Heat transfer characteristics between a copper plate (50 x 10 mm) and liquid helium have been measured for two kinds of surfaces, i.e. the surfaces were chemically oxidized and anodized. The experimental results showed that the critical heat fluxes do not change between the different oxidization samples. But the minimum heat fluxes have a variation which may have been caused from the growth of other components than copper oxide on the surface. The formation of matrix in chemically oxidized samples became clear by X-ray photo-electron spectroscopy, and a different compactness on the surface was indicated by scanning electron microscopy.

Détails

  • Titre original : Heat transfer from a chemically oxidized or anodized copper plate to liquid helium.
  • Identifiant de la fiche : 2006-1075
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 48 - n. 21-22
  • Date d'édition : 10/2005

Liens


Voir d'autres articles du même numéro (7)
Voir la source

Indexation