contributor author | Li, Xiangyu | |
contributor author | Park, Wonjun | |
contributor author | Chen, Yong P. | |
contributor author | Ruan, Xiulin | |
date accessioned | 2017-11-25T07:16:44Z | |
date available | 2017-11-25T07:16:44Z | |
date copyright | 2016/11/10 | |
date issued | 2017 | |
identifier issn | 0022-1481 | |
identifier other | ht_139_02_022401.pdf | |
identifier uri | http://138.201.223.254:8080/yetl1/handle/yetl/4234169 | |
description abstract | Metal nanoparticle has been a promising option for fillers in thermal interface materials due to its low cost and ease of fabrication. However, nanoparticle aggregation effect is not well understood because of its complexity. Theoretical models, like effective medium approximation model, barely cover aggregation effect. In this work, we have fabricated nickel–epoxy nanocomposites and observed higher thermal conductivity than effective medium theory predicts. Smaller particles are also found to show higher thermal conductivity, contrary to classical models indicate. A two-level effective medium approximation (EMA) model is developed to account for aggregation effect and to explain the size-dependent enhancement of thermal conductivity by introducing local concentration in aggregation structures. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Effect of Particle Size and Aggregation on Thermal Conductivity of Metal–Polymer Nanocomposite | |
type | Journal Paper | |
journal volume | 139 | |
journal issue | 2 | |
journal title | Journal of Heat Transfer | |
identifier doi | 10.1115/1.4034757 | |
journal fristpage | 22401 | |
journal lastpage | 022401-5 | |
tree | Journal of Heat Transfer:;2017:;volume( 139 ):;issue: 002 | |
contenttype | Fulltext | |