An impedance spectral analysis of electric characteristics of pyrophyllite dehydration at high temperature and high pressure
DOI:
Author:
Affiliation:

Clc Number:

P578.958 O482.4

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    The electric conductivity of pyrophyllite was measured by means of Sarltron-1260 frequency and phase impedance spectroscopic analyzer under the condition of 1.0, 2.0 GPa and 873~1223 K and on the basis of microcosmic mechanism analysis. The experimental results indicate that (1) the electric conductivity of the sample depends on frequency, (2) the relationship between electric conductivity and temperature is in linear accord with the Arrenhius equation,and (3) the dehydration temperature of pyrophyllite is 1074 K and 1101 K at1.0 GPa and 2.0 GPa, respectively. A conclusion different from previous conclusions has been drawn, which holds that an inflexion appears after dehydration.

    Reference
    Related
    Cited by
Get Citation

代立东 李和平 苏根利 单双明 崔桐娣 许祖鸣,2005,高温高压下叶蜡石脱水电学性质的阻抗谱分析[J].岩石矿物学杂志,24(3):216~220. DAI Li-dong~,2005,An impedance spectral analysis of electric characteristics of pyrophyllite dehydration at high temperature and high pressure[J]. Acta Petrologica et Mineralogica,24(3):216~220.

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:
  • Revised:
  • Adopted:
  • Online:
  • Published: