[19p-D62-1~17] 22.1 Joint Session M "Phonon Engineering"

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[19p-D62-13] Thermal conductivity measurement of CNT assembles using 1D thermal diffusion simulation

〇Haruto Kurono¹, Hisashi Sugime², Hiromu Hamasaki¹, Takayuki Nakano¹, Hiroya Ikeda¹, Yoku Inoue¹ (1.Shizuoka Univ., 2.Kindai Univ.)

Keywords:

nanocarbon

In this study, the thermal conductivity properties of twisted yarns and ultra-long CNTs by dry spinning were evaluated on a macro scale. Twisted yarns were prepared from vertically oriented CNT forests synthesized by thermochemical vapor deposition, and ultra-long CNTs of about 11 cm in length were synthesized by cold-gas CVD. Temperature decay due to electron beam irradiation was analyzed to investigate the effect of crystallinity. The thermal conductivity of the highly crystallized ultra-long CNTs was improved by about 3.5 times, but the improvement of the twisted yarns was limited.