[1]姚武,徐晶..不同交流电频率下碳纤维水泥基材料的导电特性[J].郑州大学学报(工学版),2009,30(01):96-100.[doi:10.3969/j.issn.1671-6833.2009.01.022]
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.[doi:10.3969/j.issn.1671-6833.2009.01.022]
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不同交流电频率下碳纤维水泥基材料的导电特性(
)
《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]
- 卷:
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30卷
- 期数:
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2009年01期
- 页码:
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96-100
- 栏目:
-
- 出版日期:
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1900-01-01
文章信息/Info
- Title:
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Conductive properties of carbon fiber cementitious materials at different alternating current frequencies
- 作者:
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姚武; 徐晶.
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同济大学,材料科学与工程学院,上海,200092, 同济大学,材料科学与工程学院,上海,200092
- Author(s):
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Yao Wu; Xu Jing
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-
- 关键词:
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碳纤维; 水泥基材料; 交流电; 阻抗; 频率
- Keywords:
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- DOI:
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10.3969/j.issn.1671-6833.2009.01.022
- 文献标志码:
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A
- 摘要:
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研究了交流电不同频率下碳纤维水泥基(CFRC)材料的导电特性,针对不同纤维掺量的试样进行了对比试验.结果表明,碳纤维掺量处于渗流阈值以下的CFRC材料随频率升高其阻抗-频率曲线均呈现相似的变化规律;且随着碳纤维掺量增大,阻抗随频率变化的趋势减缓.建立了CFRC材料内部的等效电路模型,以描述其在交流电情况下的导电特性,并对模型进行了线性回归计算及相关性分析,验证了模型的合理性.研究结果显示,CFRC材料的交流电阻低于直流电阻,其电容值随碳纤维掺量增大而增大.
- Abstract:
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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.
更新日期/Last Update:
1900-01-01