scholarly journals Effective medium theory for the conductivity of disordered metallic nanowire networks

2016 ◽  
Vol 18 (39) ◽  
pp. 27564-27571 ◽  
Author(s):  
Colin O'Callaghan ◽  
Claudia Gomes da Rocha ◽  
Hugh G. Manning ◽  
John J. Boland ◽  
Mauro S. Ferreira
Keyword(s):  
Electrical Properties ◽  
Analytical Model ◽  
Effective Medium Theory ◽  
Effective Medium ◽  
Medium Theory ◽  
Metallic Nanowire Networks ◽  
Nanowire Networks

An analytical model with dependance on all important underlying parameters to calculate the electrical properties of nanowire networks is presented.

Parametric Study on Mechanical, Thermal and Electrical Properties of Graphene Reinforced Composites by Effective Medium Theory

2021 ◽  
Vol 13 (01) ◽  
pp. 2150008
Author(s):  
Zhilin Tong ◽  
Yu Wang ◽  
Chuang Feng ◽  
Dong Zhu ◽  
Sujing Jin
Keyword(s):  
Dielectric Properties ◽  
Electrical Properties ◽  
Material Properties ◽  
Parametric Study ◽  
Effective Medium Theory ◽  
Effective Medium ◽  
Reinforced Composites ◽  
Medium Theory ◽  
The Matrix ◽  
Thermal And Electrical Properties

This paper conducts theoretical study on the mechanical, thermal and electrical properties of graphene reinforced composites by effective medium theory (EMT). Considering the imperfect bonding between the reinforcing fillers and the matrix, an interphase surrounding the graphene fillers is introduced during the EMT modeling. The coated graphene fillers are homogenized as effective reinforcements dispersed in a matrix. The EMT model is validated by comparing the predicted material properties with previously reported results. Parametric study is carried out to investigate the influences of several parameters, including concentration and geometry of graphene fillers, the attributes of the introduced an interphase and the alternating current (AC) frequency, upon the effective material properties of the reinforced composites. The results demonstrate that the increase of the thickness of the interphase results in the decrease of Young’s modulus, thermal conductivity and electrical conductivity of the composites while it is favorable to enhance the dielectric properties of the composites. The increase in the aspect ratio of the graphene filler enhances all material properties involved. Percolation behaviors are observed for the dielectric properties of the composites. Moreover, the dielectric properties of the composites are very sensitive to the change of the AC frequency within a certain range, which suggests the achievement of active tuning of material properties.

Effective medium theory and the attenuation of graphite fiber composites

1993 ◽  
Vol 73 (7) ◽  
pp. 3441-3445 ◽  
Author(s):  
Herbert Überall ◽  
Barbara F. Howell ◽  
Earl L. Diamond
Keyword(s):  
Effective Medium Theory ◽  
Fiber Composites ◽  
Effective Medium ◽  
Graphite Fiber ◽  
Medium Theory

From the Huckel model to effective-medium theory

1991 ◽  
Vol 3 (40) ◽  
pp. 7757-7762 ◽  
Author(s):  
H Hakkinen ◽  
J Mansikka-aho ◽  
M Manninen
Keyword(s):  
Effective Medium Theory ◽  
Effective Medium ◽  
Medium Theory
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