Qualitative Equivalence Between Electrical Percolation Threshold and Effective Thermal Conductivity in Polymer/Carbon NanocompositesSource: Journal of Engineering Materials and Technology:;2012:;volume( 134 ):;issue: 001::page 10902Author:Majid Baniassadi
,
Akbar Ghazavizadeh
,
Yves Rémond
,
Said Ahzi
,
David Ruch
,
Hamid Garmestani
DOI: 10.1115/1.4005410Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, a qualitative equivalence between the electrical percolation threshold and the effective thermal conductivity of composites filled with cylindrical nanofillers has been recognized. The two properties are qualitatively compared on a wide range of aspect ratios, from thin nanoplatelets to long nanotubes. Statistical continuum theory of strong-contrast is utilized to estimate the thermal conductivity of this type of heterogeneous medium, while the percolation threshold is simultaneously evaluated using the Monte Carlo simulations. Statistical two-point probability distribution functions are used as microstructure descriptors for implementing the statistical continuum approach. Monte Carlo simulations are carried out for calculating the two-point correlation functions of computer generated microstructures. Finally, the similarities between the effective conductivity properties and percolation threshold are discussed.
keyword(s): Composite materials , Thermal conductivity , Percolation theory , Carbon , Functions , Nanocomposites , Conductivity , Polymers , Probability , Engineering simulation , Nanotubes AND Computers ,
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contributor author | Majid Baniassadi | |
contributor author | Akbar Ghazavizadeh | |
contributor author | Yves Rémond | |
contributor author | Said Ahzi | |
contributor author | David Ruch | |
contributor author | Hamid Garmestani | |
date accessioned | 2017-05-09T00:50:53Z | |
date available | 2017-05-09T00:50:53Z | |
date copyright | January, 2012 | |
date issued | 2012 | |
identifier issn | 0094-4289 | |
identifier other | JEMTA8-27149#010902_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/149008 | |
description abstract | In this study, a qualitative equivalence between the electrical percolation threshold and the effective thermal conductivity of composites filled with cylindrical nanofillers has been recognized. The two properties are qualitatively compared on a wide range of aspect ratios, from thin nanoplatelets to long nanotubes. Statistical continuum theory of strong-contrast is utilized to estimate the thermal conductivity of this type of heterogeneous medium, while the percolation threshold is simultaneously evaluated using the Monte Carlo simulations. Statistical two-point probability distribution functions are used as microstructure descriptors for implementing the statistical continuum approach. Monte Carlo simulations are carried out for calculating the two-point correlation functions of computer generated microstructures. Finally, the similarities between the effective conductivity properties and percolation threshold are discussed. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Qualitative Equivalence Between Electrical Percolation Threshold and Effective Thermal Conductivity in Polymer/Carbon Nanocomposites | |
type | Journal Paper | |
journal volume | 134 | |
journal issue | 1 | |
journal title | Journal of Engineering Materials and Technology | |
identifier doi | 10.1115/1.4005410 | |
journal fristpage | 10902 | |
identifier eissn | 1528-8889 | |
keywords | Composite materials | |
keywords | Thermal conductivity | |
keywords | Percolation theory | |
keywords | Carbon | |
keywords | Functions | |
keywords | Nanocomposites | |
keywords | Conductivity | |
keywords | Polymers | |
keywords | Probability | |
keywords | Engineering simulation | |
keywords | Nanotubes AND Computers | |
tree | Journal of Engineering Materials and Technology:;2012:;volume( 134 ):;issue: 001 | |
contenttype | Fulltext |