S111054 高配向カーボンナノチューブ膜の接触熱抵抗に及ぼす接触条件の影響([S111-05]第19回卒業研究コンテスト(5))

Abstract

Carbon nanotubes have been reported to have high thermal conductivity. A vertically aligned carbon nanotube (VA-CNT) film is composed of densely packed and highly-aligned CNTs on a SiC substrate. This VA-CNT film is expected to have superior heat conductivity than a conventional thermal-grease heat transfer method. However, it is not clear that how much contact pressure and contact roughness affect the contact thermal conductivity of the VA-CNT films. We developed an apparatus that measures the contact thermal resistance by an one-directional steady-state heat flow method. We found out that there was suitable surface roughness for the minimum contact thermal resistance of the VA-CNT film.