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ENHANCED THERMAL CONDUCTIVITY OF EPOXY MATRIX COMPOSITES FILLED WITH BORON NITRIDE PARTICLES

Journal: International Journal of Mechanical Engineering and Technology(IJMET) (Vol.6, No. 5)

Publication Date:

Authors : ; ; ;

Page : 10-16

Keywords : ENHANCED THERMAL CONDUCTIVITY OF EPOXY MATRIX COMPOSITES FILLED WITH BORON NITRIDE PARTICLES;

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Abstract

The present paper deals with the estimation of thermal conductivity of epoxy Composites embedded with boron nitride (BN) micro-fillers. These composites with BN content ranging from 0 to 11.3 vol. % have been prepared and the thermal conductivities of the samples are measured experimentally. A numerical simulation using finite element package ANSYS is used to explain heat transfer process within epoxy matrix filled with micro-BN and the effective thermal conductivity values obtained from this method are validated with experimental results and theoretical correlation. It is observed that for 11.3 vol% of micro-BN in epoxy matrix, the increase in thermal conductivity is about 27.82 % while for 30 vol% the increase in thermal conductivity is about 440 % which is reasonably higher compared to neat epoxy resin. The results show that the BN particles show a percolation behavior at 20 vol% at which a sudden jump in thermal conductivity is noticed.

Last modified: 2015-06-17 22:30:13