Synthesis of a polymer composite with networked α-alumina fiber and evaluation of its thermal conductivity

Abstract

A composite was prepared by impregnating epoxy resin into a fused α-alumina pellet, which was synthesized by calcinating aluminum-nitrate-immersed α-alumina fibers. The thermal conductivity of this composite in the planar direction is about 2.7 times higher than the predicted value of a composite containing α-alumina particles with the same alumina content.