Permittivity of Dielectric Composite Materials Comprising Graphene Nanoribbons. The Effect of Nanostructure

2013 ◽  
Vol 5 (15) ◽  
pp. 7567-7573 ◽  
Author(s):  
Ayrat Dimiev ◽  
Dante Zakhidov ◽  
Bostjan Genorio ◽  
Korede Oladimeji ◽  
Benjamin Crowgey ◽  
...  
Keyword(s):  
Composite Materials ◽  
Graphene Nanoribbons ◽  
Dielectric Composite

scholarly journals Heat Transfer at the Interface of Graphene Nanoribbons with Different Relative Orientations and Gaps

Energies ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 796 ◽  
Author(s):  
Shahin Mohammad Nejad ◽  
Masoud Bozorg Bigdeli ◽  
Rajat Srivastava ◽  
Matteo Fasano
Keyword(s):  
Composite Materials ◽  
Thermal Resistance ◽  
Interplanar Spacing ◽  
Graphene Nanoribbons ◽  
Angular Displacement ◽  
Filler Loading ◽  
Interfacial Thermal Resistance ◽  
Geometrical Parameters ◽  
Thermal Transfer ◽  
The Impact

Because of their high thermal conductivity, graphene nanoribbons (GNRs) can be employed as fillers to enhance the thermal transfer properties of composite materials, such as polymer-based ones. However, when the filler loading is higher than the geometric percolation threshold, the interfacial thermal resistance between adjacent GNRs may significantly limit the overall thermal transfer through a network of fillers. In this article, reverse non-equilibrium molecular dynamics is used to investigate the impact of the relative orientation (i.e., horizontal and vertical overlap, interplanar spacing and angular displacement) of couples of GNRs on their interfacial thermal resistance. Based on the simulation results, we propose an empirical correlation between the thermal resistance at the interface of adjacent GNRs and their main geometrical parameters, namely the normalized projected overlap and average interplanar spacing. The reported correlation can be beneficial for speeding up bottom-up approaches to the multiscale analysis of the thermal properties of composite materials, particularly when thermally conductive fillers create percolating pathways.

scholarly journals On the Bergman–Milton bounds for the homogenization of dielectric composite materials

2007 ◽  
Vol 271 (2) ◽  
pp. 470-474 ◽  
Author(s):  
Andrew J. Duncan ◽  
Tom G. Mackay ◽  
Akhlesh Lakhtakia
Keyword(s):  
Composite Materials ◽  
Dielectric Composite

scholarly journals Effective permittivity of 3D lossy dielectric composite materials

1999 ◽  
Vol 35 (3) ◽  
pp. 1223-1226 ◽  
Author(s):  
P. Clauzon ◽  
L. Krahenbuhl ◽  
A. Nicolas
Keyword(s):  
Composite Materials ◽  
Effective Permittivity ◽  
Dielectric Composite ◽  
Lossy Dielectric

scholarly journals Slow light in dielectric composite materials of metal nanoparticles

2012 ◽  
Vol 20 (23) ◽  
pp. 25790 ◽  
Author(s):  
Kwang-Hyon Kim ◽  
Anton Husakou ◽  
Joachim Herrmann
Keyword(s):  
Composite Materials ◽  
Metal Nanoparticles ◽  
Slow Light ◽  
Dielectric Composite

scholarly journals A Review of Using Conductive Composite Materials in Solving Lightening Strike and Ice Accumulation Problems in Aviation

2019 ◽  
Author(s):  
Belal Alemour ◽  
Omar Badran ◽  
Mohd Roshdi Hassan
Keyword(s):  
Composite Materials ◽  
Graphene Nanoribbons ◽  
Energy Usage ◽  
Conductive Composite ◽  
Lightning Strikes ◽  
Heater Element ◽  
Conductive Composites ◽  
Ice Accumulation ◽  
Protection Systems ◽  
Conductive Fibers

There are many problems facing aircraft in the air during flight, such as lightning strikes and ice accumulation on aircraft surfaces. These problems usually reduce aircraft efficiency and lead to serious accidents and fatalities. However, the current protection systems used to solve these problems of aircraft represent excessive energy usage, a hazard to the environment, and they are generally bulky, heavy and costly. Therefore, there are new conductive composites containing an embedded layer of conductive fibers such as graphene and carbon nanotube designed to carry lightning currents, in addition to that, there is a new deicing heater element made of graphene nanoribbons films to be used in ice protection systems. This paper presents a review of some problems facing aircraft in the air, such as lightning and ice accumulation on the surfaces of the aircraft and the significant efforts that have been exerted to address and solve these issues. Also, this paper reviews the contribution of composite materials in reducing the weight of the aircraft and fuel consumption as well as increasing the efficiency of aircraft. This paper also will review the conductive composite materials and its application for aviation, in addition to their contribution to solving the most important problems in aviation.

Effect of Doping Gd2O3 on Dielectric Properties of Metal-Dielectric Composite Materials

2007 ◽  
Vol 25 ◽  
pp. 151-153 ◽  
Author(s):  
Li Lingxia ◽  
Guo Rui ◽  
Zhang Ping ◽  
Zhao Jing ◽  
Wang Hongru
Keyword(s):  
Composite Materials ◽  
Dielectric Properties ◽  
Dielectric Composite ◽  
Effect Of Doping

Microwave Dielectric Properties of Lossy Dielectric Composite Materials

2006 ◽  
Vol 45 (9B) ◽  
pp. 7489-7493 ◽  
Author(s):  
Young Joon An ◽  
Hirotake Okino ◽  
Takashi Yamamoto ◽  
Shunkichi Ueda ◽  
Takeshi Deguchi
Keyword(s):  
Composite Materials ◽  
Dielectric Properties ◽  
Microwave Dielectric Properties ◽  
Microwave Dielectric ◽  
Dielectric Composite ◽  
Lossy Dielectric
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