• 제목/요약/키워드: isotropic reinforcingfibers

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Thermal Anisotropy of Hollow Carbon Fiber-Carbon Composite Materials

  • Yang, Chun-Hoi;Shim, Hwan-Boh
    • 한국응용과학기술학회지
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    • 제22권2호
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    • pp.91-95
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    • 2005
  • Carbon composites were prepared with pitch-based round, C, hollow-type carbon fibers and pitch matrix. The thermal conductivities parallel and perpendicular to the fiber axis were measured by steady-state method. It was found that the thermal conductivities depended on the cross-sectional forms of the reinforcing fibers as well as the reinforcing orientation and carbon fiber precusors. Especially, mesophase pitch-based hollow carbon fiber-carbon composites had the most excellent thermal anisotropy, which was above 100.