Numerical study of electrical behaviour in carbon nanotube composites

被引:20
作者
Spinelli, Giovanni [1 ]
Giustiniani, Alessandro [1 ]
Lamberti, Patrizia [1 ]
Tucci, Vincenzo [1 ]
Zamboni, Walter [1 ]
机构
[1] Univ Salerno, Dept Elect & Comp Engn DIEII, I-84084 Fisciano, SA, Italy
关键词
Nanocomposites; electrical conductivity; numerical modeling; PHYSICAL-PROPERTIES; POLYMER COMPOSITES; PERCOLATION;
D O I
10.3233/JAE-2012-1438
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A structure aimed at modeling a polymeric nanocomposite loaded with carbon nanotubes (CNTs) is simulated by considering, in a three-dimensional space, a random distribution of impenetrable conducting cylinders inside an insulating cubic matrix. The variation of the electrical conductivity of the structure for different volume loadings of the conducting phase is estimated through a 3D resistor network. The tunneling effect between conducting clusters which is deemed responsible of the global conductivity is taken into account. By using a Monte Carlo method, the electrical conductivity and the percolation thresholds of the obtained structures are analyzed as a function of geometrical and physical influencing parameters.
引用
收藏
页码:21 / 27
页数:7
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