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Chinese Journal of High Pressure Physics  > 2002  >  16(1): 42-45 .
BAO Zhong-Xing, CHENG Hui-Ming, BAI Shuo, LI Feng, HOU Peng-Xiang, LIU Cui-Xia. Electrical Property and Equations of State in Carbon Nanotubes at High Pressure[J]. Chinese Journal of High Pressure Physics, 2002, 16(1): 42-45 . doi: 10.11858/gywlxb.2002.01.007
Citation: BAO Zhong-Xing, CHENG Hui-Ming, BAI Shuo, LI Feng, HOU Peng-Xiang, LIU Cui-Xia. Electrical Property and Equations of State in Carbon Nanotubes at High Pressure[J]. Chinese Journal of High Pressure Physics, 2002, 16(1): 42-45 . doi: 10.11858/gywlxb.2002.01.007
shu

Electrical Property and Equations of State in Carbon Nanotubes at High Pressure

doi: 10.11858/gywlxb.2002.01.007
  • 1.

    Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China;

  • 2.

    Institute of Metal, Shenyang 110015, China;

  • 3.

    Shenyang National Laboratory for Materials, Shenyang 110016, China;

  • 4.

    International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110015, China

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  • Corresponding author: BAO Zhong-Xing
  • Received Date: 28 Aug 2001
  • Rev Recd Date: 28 Aug 2001
  • Publish Date: 05 Mar 2002
    Abstract
  • The resistance-pressure relationship for multi-wall carbon nanotubes at room temperature and up to 23 GPa was studied in a diamond anvil cell using resistance measurement. The experimental results show that the resistance decreases sharply with pressure in 1.5～4.6 GPa, and exhibits a maximum value at about 5.7 GPa, which concerns the changes of the structure, shape and inter layer distance of carbon nanotubes. In the present work, the p-V relationships for multi-wall carbon nanotubes at room temperature at pressures up to 4.5 GPa were first studied using the piston-cylinder type measurement device for the p-V relationship. Its equations of state at first and seventh time compression were given.

     

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