Proton Irradiation Effects on Thermophysical Properties of High-Thermal-Conductivity Graphite Sheet for Spacecraft Application |
| |
| Authors: | H Nagano A Ohnishi Y Nagasaka Y H Mori A Nagashima |
| |
| Affiliation: | (1) Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku Yokohama, 223-8522, Japan;(2) Spacecraft Engineering Department, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara 229-8510, Japan;(3) Department of System Design Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku Yokohama, 223-8522, Japan |
| |
| 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.Paper presented at the Seventh Asian Thermophysical Properties Conference, August 23–26, 2004, Hefei and Huangshan, Anhui, P. R. China. |
| |
| Keywords: | graphite sheet high thermal conductivity proton irradiation effects reversible thermal panel solar absorptance spacecraft thermal control thermal diffusivity total hemispherical emittance |
| 本文献已被 SpringerLink 等数据库收录！ |
|
