Proton irradiation effects on thermophysical properties of high-thermal-conductivity graphite sheet for spacecraft application

H. Nagano, A. Ohnishi, Y. Nagasaka, Y. H. Mori, A. Nagashima

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

This paper describes an evaluation of the proton irradiation effects on the thermal characteristics of a pyrolytic graphite sheet (PGS), which has characteristics of high thermal conductivity, light weight, and flexibility, in order to apply this material to an advanced spacecraft thermal control device, the reversible thermal panel (RTP). The results show slight changes in the in-plane thermal diffusivity and total hemispherical emittance of the PGS for 2.0 MeV proton irradiation. An RTP prototype model based on the PGS was designed and fabricated, and its thermal performance was evaluated. The effects of changes in thermal characteristics of the PGS on the thermal performance of the RTP were also discussed.

Original languageEnglish
Pages (from-to)114-125
Number of pages12
JournalInternational Journal of Thermophysics
Volume27
Issue number1
DOIs
Publication statusPublished - 2006 Jan 1

Keywords

  • Graphite sheet
  • High thermal conductivity
  • Proton irradiation effects
  • Reversible thermal panel
  • Solar absorptance
  • Spacecraft thermal control
  • Thermal diffusivity
  • Total hemispherical emittance

ASJC Scopus subject areas

  • Condensed Matter Physics

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