Near-Field Heat Transfer Percolation in Nanoparticles based Composite Media

Details Near-Field Heat Transfer Percolation in Nanoparticles based Composite Media Near-Field Heat Transfer Percolation in Nanoparticles based Composite Media

2008-06-10

arxiv.org/abs/0806.1619v1

Journal of Nanoelectronics and Optoelectronics 1 (2006) 224

Physics

Condensed Matter

Materials Science

Scientific paper

Near-field radiative heat transfer is investigated in composite media including nanoparticles. By modeling pair interactions only, the effective thermal conductivity due to near field radiation is calculated based on a thermal nodes model. We highlight the onset of a Near-Field percolation occurring much earlier than the mechanical percolation at critical volume fraction f=0.033. This 15 mechanism drastically increases the thermal conductivity even at low volume fractions. It also indicates a simple experimental protocol to prove Near-Field contact.

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