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

doi:10.1007/s10765-006-0017-6

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

Department of System Design Engineering

Research output: Contribution to journal › Article › peer-review

12 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 language	English
Pages (from-to)	114-125
Number of pages	12
Journal	International Journal of Thermophysics
Volume	27
Issue number	1
DOIs	https://doi.org/10.1007/s10765-006-0017-6
Publication status	Published - 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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10.1007/s10765-006-0017-6

Cite this

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

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.",

keywords = "Graphite sheet, High thermal conductivity, Proton irradiation effects, Reversible thermal panel, Solar absorptance, Spacecraft thermal control, Thermal diffusivity, Total hemispherical emittance",

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AU - Nagano, H.

AU - Ohnishi, A.

AU - Nagasaka, Y.

AU - Mori, Y. H.

AU - Nagashima, A.

PY - 2006/1/1

Y1 - 2006/1/1

N2 - 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.

AB - 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.

KW - Graphite sheet

KW - High thermal conductivity

KW - Proton irradiation effects

KW - Reversible thermal panel

KW - Solar absorptance

KW - Spacecraft thermal control

KW - Thermal diffusivity

KW - Total hemispherical emittance

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

Abstract

Keywords

ASJC Scopus subject areas

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