Adv. Search
Journal of Inorganic Materials

Journal of Inorganic Materials >

2006 , Vol. 21 >Issue 5: 1167 - 1172

DOI: https://doi.org/10.3724/SP.J.1077.2006.01167

Research Paper

High Thermal Conductivity Carbon Materials Made from Mesophase Pitch Fibers

  • MA Zhao-Kun ,
  • SHI Jing-Li ,
  • LIU Lang ,
  • GUO Quan-Gui ,
  • ZHAI Geng-Tai
Expand
  • 1. Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2005-10-10

  Revised date: 2005-12-26

  Online published: 2006-09-20

Fold

Abstract

Block carbon materials with high thermal conductivities were prepared from mesophase pitch fibers by using their high preferred orientation of pitch molecular and appropriate thermoplasticity through a hot-pressing method. The conductivities and mechanical properties of carbon materials prepared separately from ribbon-shaped and round-shaped mesophase fibers at different oxidizing temperatures were compared and studied. Results show that compared with the round-shaped mesophase fibers, the ribbon-shaped mesophase fibers have higher preferred orientation and larger contact areas, so they have higher densities and conductivities. The density, bending strength, electrical resistivity and thermal conductivity of carbon materials prepared by using ribbon-shaped fibers oxidized at 260℃ and then sintered at 2800℃ are 2.18g·cm-3, 118.4MPa, 1.13μΩm and 717W/m·K, respectively.

Key words： mesophase pitch fibers; stabilization; hot-pressing; high thermal conductivity

Cite this article

MA Zhao-Kun , SHI Jing-Li , LIU Lang , GUO Quan-Gui , ZHAI Geng-Tai . High Thermal Conductivity Carbon Materials Made from Mesophase Pitch Fibers[J]. Journal of Inorganic Materials, 2006 , 21(5) : 1167 -1172 . DOI: 10.3724/SP.J.1077.2006.01167

References

[1] 孙乐民, 李贺军, 张守阳(SUN Le-Min, et al). 无机材料学报(Journal of Inorganic Materials), 2000, 15 (6): 1111--1116.
[2] Fitzer E. Carbon, 1987, 25 (2): 163--190.
[3] Hugh O. Pieson. Handbook of carbon, graphite, diamond and
fullenenesroperties, processing and application. USA. Noyes Publication, 1993. 51--63.
[4] Blazewicz S, Blocki J, Chlopek J, et al. Carbon, 1996, 34 (11): 1393--1399.
[5] 邱海鹏, 郭全贵. 宇航材料工艺, 2001, 31 (6): 23--26.
[6] Adams P M, Katzman H A, Rellick G S, et al. Carbon, 1998, 36 (3): 233--245.
[7] 邱海鹏, 宋永忠, 郭全贵, 等. 功能材料, 2002, 33 (5): 473--476.
[8] Barr J B, Hecht D H, Levan C D. High thermal conductivity panels from
mesophase pitch fibers. Extended abstracts, 22nd biennial Conf, on carbon. UC
San Deigo (California. USA): American Carbon Society, 1995. 32--33.
[9] Edie D D, Fain C C, Robinson K E, et al. Carbon, 1993, 31 (6): 941--949.
[10] Edie D D, Robinson K E, Fleurot O, et al. Carbon, 1994, 32 (6): 1045--1054. [11] Gallego N C, Edie D D, Nysten B, et al. Carbon, 2000, 38 (7): 1003--1010.
[12] Callego N C, Edie D D. Composites: Part A 2001, 32 (8): 1038--1043.
[13] 李安邦. 新型炭材料, 1999, 14 (1): 80.
Options
Outlines

/

〈 〉