Journal of Shanghai University(Natural Science Edition) ›› 2014, Vol. 20 ›› Issue (1): 51-58.doi: 10.3969/j.issn.1007-2861.2013.07.045

• Composite Materials • Previous Articles     Next Articles

Preparation of High Thermal Conductivity C/C Composite

FENG Zhi-hai, FAN Zhen, KONG Qing, YU Li-qiong, XU Lin   

  1. Key Laboratory of Advanced Functional Composite Materials, Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China
  • Received:2013-12-24 Online:2014-02-28 Published:2014-02-28

Abstract: 2D high thermal conductivity C/C composite and 3D high thermal conductivity C/C composite were produced through hot pressing and liquid impregnating method, with mesophase pitch-based carbon fiber and mesophase pitch as raw materials. Thermal conductivity as high as 443 W/(m·K) and 340 W/(m·K) was achieved for 2D high thermal conductivity C/C composite and 3D high thermal conductivity C/C composite, respectively. The effects of structure parameters on the thermal conductivity were analyzed according to the analytical thermal model of C/C composites. The results show that thermal conductivity of carbon matrix, porosity and interface have different effects on the thermal conductivity of composites.

Key words: high thermal conductivity C/C composite, mesophase pitch, mesophase pitch-based carbon fiber

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