In order to apply a new material - graphite sheet, which is characteristics of high thermal conductivity, lightweight and flexibility, to the material for spacecraft thermal control applications, following thermophysical properties of this material have been measured: (1) The thermal diffusivities in the in-plane direction and the out-of-plane direction were measured over the temperature range from 100 to 350 K by using a laser heating ac calorimetric method. (2) The specific heat and the total hemispherical emittance were measured over the temperature range from 173 to 375 K by using a transient calorimetric method. (3) The solar absorptance was measured by using a spectroscopic method for angles of incidence ranging from 5° to 60°. Additionally, the thermal conductivities and the specific thermal conductivities were calculated using the measured result, and high potentials of this graphite sheet as a material for the spacecraft thermal control were confirmed.
|出版ステータス||Published - 2000 12月 1|
|イベント||34th Thermophysics Conference 2000 - Denver, CO, United States|
継続期間: 2000 6月 19 → 2000 6月 22
|Other||34th Thermophysics Conference 2000|
|Period||00/6/19 → 00/6/22|
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