Abstract
Thermophysical properties of a new material - a graphite sheet, which has characteristics of high thermal conductivity, anisotropy, lightweight and flexibility - have been measured in order to apply this sheet to a spacecraft thermal control material. The following measurements were performed: 1) The thermal diffusivities in the in-plane and out-of-plane directions were measured over the temperature range from 100 to 350 K 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 using a transient calorimetric method. 3) The solar absorptance was measured using a spectroscopic method for angles of incidence ranging from 5 to 60 deg. Additionally, the thermal conductivities and the specific thermal conductivities were calculated using the measured results, and the high potential of this graphite sheet as a material for spacecraft thermal control was confirmed.
| Original language | English |
|---|---|
| Pages (from-to) | 347-353 |
| Number of pages | 7 |
| Journal | Journal of Thermophysics and Heat Transfer |
| Volume | 15 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2001 |
ASJC Scopus subject areas
- Condensed Matter Physics
- Aerospace Engineering
- Mechanical Engineering
- Fluid Flow and Transfer Processes
- Space and Planetary Science