Effect of aggregation and interfacial thermal resistance on thermal conductivity of nanocomposites and colloidal nanofluids

Effect of aggregation and interfacial thermal resistance on thermal conductivity of nanocomposites and colloidal nanofluids

TitleEffect of aggregation and interfacial thermal resistance on thermal conductivity of nanocomposites and colloidal nanofluids
Publication TypeJournal Article
Year of Publication2008
AuthorsW Evans, Ravi S Prasher, J Fish, P Meakin, Patrick E Phelan, others
JournalInternational Journal of
Date Published03/2008
Keywordsaggregation, Homogenization model, Interfacial thermal resistance, monte carlo simulation, nanoparticles, Thermal conductivity
Abstract

We analyzed the role of aggregation and interfacial thermal resistance on the effective thermal conductivity of nanofluids and nanocomposites. We found that the thermal conductivity of nanofluids and nanocomposites can be significantly enhanced by the aggregation of nanoparticles into clusters. The value of the thermal conductivity enhancement is determined by the cluster morphology, filler conductivity and interfacial thermal resistance. We also compared thermal conductivity enhancement due to aggregation with that associated with high-aspect ratio fillers, including fibers and plates.

DOI10.1016/j.ijheatmasstransfer.2007.10.017