Application of Pitch-Type Carbon Fibre Reinforced Plastics for Cryogenic Thermal Shielding

  • Bora Rugaiganisa
  • Shigehiro Nishijima
  • Toichi Okada
  • Kenichi Nojima
  • Kiyoshi Asano
Part of the An International Cryogenic Materials Conference Publication book series (ACRE, volume 40)

Abstract

The thermal insulation characteristics of a single-shield cryostat have been studied in terms of liquid helium evaporation loss rate. An aluminum thermal radiation shield was used and then substituted with a pitch CFRP one. The evaporation loss increased by a mere 7% at the cryostat operating point. Prior to this, the temperature dependency of both the thermal conductivity of CFRP and the electric resistivity of carbon was studied in order to decide on the type of pitch to use for the shield.

Keywords

Fatigue Petroleum Helium Brittle Plastics 

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References

  1. 1.
    T. Okada, B. Rugaiganisa and S. Nishijima, Advanced composite materials for cryogenic use - Applicability of pitch carbon fibre reinforced plastics (pitch-CFRP) for thermal shielding -, ICMC Proceedings, Cryogenics (1992) vol. 32 pp. 30 - 32Google Scholar

Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • Bora Rugaiganisa
    • 1
  • Shigehiro Nishijima
    • 1
  • Toichi Okada
    • 1
  • Kenichi Nojima
    • 2
  • Kiyoshi Asano
    • 2
  1. 1.ISIROsaka UniversityIbaraki, OSAKA 567Japan
  2. 2.Arisawa Mfg. Co. Ltd.Joetsu, NIIGATA 943Japan

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