Conductive Properties of Carbon Fiber Cementitious Materials at Different Alternating Current Frequencies
[1]YAO Wu,XU Jing.Conductive Properties of Carbon Fiber Cementitious Materials at Different Alternating Current Frequencies[J].Journal of Zhengzhou University (Engineering Science),2009,30(01):96-100.
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
30卷
Number of periods:
2009 01
Page number:
96-100
Column:
Public date:
1900-01-01
- Title:
- Conductive Properties of Carbon Fiber Cementitious Materials at Different Alternating Current Frequencies
- Keywords:
- carbon fiber; cement-based materials; alternating current; impedance; Frequency
- CLC:
- -
- DOI:
- -
- Abstract:
- The conductive properties of carbon fiber cement-based (CFRC) materials at different frequencies of alternating current were studied, and the samples with different fiber content were compared and tested. The results show that the impedance-frequency curves of CFRC materials with carbon fiber content below the seepage threshold show similar variation rules with the increase of frequency. And with the increase of carbon fiber content, the trend of impedance change with frequency slows down. An equivalent circuit model inside the CFRC material was established to describe its conductivity under alternating current, and linear regression calculation and correlation analysis were performed on the model to verify the rationality of the model. The results show that the AC resistance of CFRC material is lower than that of DC resistance, and its capacitance value increases with the increase of carbon fiber content.
- References:
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Last Update:
1900-01-01