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Chinese Journal of High Pressure Physics  > 2005  >  19(1): 29-34 .
DAI Li-Dong, LI He-Ping, LIU Cong-Qiang, SU Gen-Li, CUI Tong-Di, SHAN Shuang-Ming, YANG Chang-Jun, LIU Qing-You. Experimental Study on Impedance Spectra of Iherzolite under High Temperature and High Pressure[J]. Chinese Journal of High Pressure Physics, 2005, 19(1): 29-34 . doi: 10.11858/gywlxb.2005.01.006
Citation: DAI Li-Dong, LI He-Ping, LIU Cong-Qiang, SU Gen-Li, CUI Tong-Di, SHAN Shuang-Ming, YANG Chang-Jun, LIU Qing-You. Experimental Study on Impedance Spectra of Iherzolite under High Temperature and High Pressure[J]. Chinese Journal of High Pressure Physics, 2005, 19(1): 29-34 . doi: 10.11858/gywlxb.2005.01.006
shu

Experimental Study on Impedance Spectra of Iherzolite under High Temperature and High Pressure

doi: 10.11858/gywlxb.2005.01.006
  • 1.

    Laboratory of Earth's Interior Materials and Fluid Effect, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China;

  • 2.

    Graduate School of Chinese Academy of Sciences, Beijing 100039, China;

  • 3.

    Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China;

  • 4.

    Technology of University in Guizhou, Guiyang 550004, China

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  • Corresponding author: DAI Li-Dong
  • Received Date: 08 Jun 2004
  • Rev Recd Date: 20 Sep 2004
  • Publish Date: 05 Mar 2005
    Abstract
  • The electrical conductivities of the iherzolite were measured by virtue of SARLTON-1260 frequency and phase impedance spectroscopy analyzer in situation of 1.0~4.0 GPa, 1 073~1 573 K and 10-1～107 Hz frequency ranges. The experimental results indicate that the complex impedance spectra of iherzolite strongly depends on frequency, at the same time we explain it by virtue of electrical conduction: grain boundaries, grain interiors as well as between sample and electrode; the temperature is an important parameter deciding the electrical conductivity. As temperature increases, the electrical conductivity augments. The relationships between lg and 1/T accord with Arrenhius relation formula; this is the first time that the pressure as a controlling ingredient is well brought forward: As the pressure increases, the block rate advances; at the same time the electrical conductivity decreases.

     

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