基于隧道效应的CFRC材料的导电模型

Conductivity model of carbon fiber reinforced cement composite based on tunneling effect

从碳纤维增强水泥基(CFRC)材料导电机理出发,建立了一个描述CFRC材料导电性的数学模型,并推导了这种材料电导率与材料内部微观结构参数、载流子运动参数的关系。以该模型分析CFRC材料的力敏性,其理论规律与实验结果基本一致,从而验证了CRFC导电模型的合理性。

Based on the conductive mechanism of the carbon fiber reinforced cement （CFRC） composite, a mathematic model was set up to describe the conductivity of CFRC. By using the model, the relationships between the electric conductivity and the microstructure parameters as well as the motion parameters of carriers within the CFRC composites were obtained. Moreover, the load sensitivity of CFRC composites was analyzed in terms of the conductivity model. The theoretical deductions obtained from the model were in good agreement with the experimental results, which proved the rationality of the conductivity model of CFRC.