The Estimation of Thermal Conductivity for Alumina-Epoxy Composite Material with High Filling Volume Fraction

Abstract:

In this study, the transport theorem of phonons and electrons is utilized to create a model to predict the thermal conductivity of composite materials. By observing or assuming the dopant displacement in the matrix, a physical model between dopant and matrix can be built, and the composite material can be divided into several regions. In each region, the phonon or electron scattering caused by boundaries, impurities, or U-processes was taken into account to calculate the thermal conductivity. The model is then used to predict the composite thermal conductivity for several composite materials. It shows a pretty good agreement with previous studies in literatures. Based on the model, some discussions about dopant size and volume fraction are also made.

• Periodical: Advanced Materials Research (Volume 918)
• Pages: 21-26
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.918.21
• Online since: April 2014
• Authors: Chen Kang Huang, Yun Ching Leong
• Keywords: Alumina, Epoxy, Thermal Conductivity, Volume Fraction

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