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Conductivité thermique et résistance de Kapitza d'un mélange de résine époxy de cyanate ester et d'isolations électriques trifonctionnelles époxy à la température de l'hélium superfluide.

Thermal conductivity and Kapitza resistance of cyanate ester epoxy mix and tri-functional epoxy electrical insulations at superfluid helium temperature.

Auteurs : PIETROWICZ S., FOUR A., JONES S., et al.

Type d'article : Article

Résumé

In the framework of the European Union FP7 project EuCARD, two composite insulation systems made of cyanate ester epoxy mix and tri-functional epoxy with S-glass fiber have been thermally tested as possible candidates to be the electrical insulation of 13 T Nb3Sn high field magnets under development for this program. Since it is expected to be operated in pressurized superfluid helium at 1.9 K and 1 atm, the thermal conductivity and the Kapitza resistance are the most important input parameters for the thermal design of this type of magnet and have been determined in this study. For determining these thermal properties, three sheets of each material with different thicknesses varying from 245 to 598 µm have been tested in steady-state condition in the temperature range of 1.6–2.0 K. The results are compared with other epoxy based composite electrical insulation found in the literature. [Reprinted with permission from Elsevier. Copyright, 2011].

Détails

  • Titre original : Thermal conductivity and Kapitza resistance of cyanate ester epoxy mix and tri-functional epoxy electrical insulations at superfluid helium temperature.
  • Identifiant de la fiche : 30003876
  • Langues : Anglais
  • Source : Cryogenics - vol. 52 - n. 2-3
  • Date d'édition : 02/2012
  • DOI : http://dx.doi.org/10.1016/j.cryogenics.2011.12.002

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