Al-Qadisiyah Journal for Engineering Sciences

Abstract The aims of this study is to investigation the effect of reinforcing with hybrid fibers included natural palms fibers and carbon fibers on thermal behavior of araldite resin(AY103) . This resin was reinforced with natural palms fibers is studied and compared it with another material reinforced by carbon fibers(°0)with (1.75g/cm3) density ,and then these two types of fibers combined together in same matrix to make a hybrid composite material and also calculated the range of it's thermal conductivity coefficient .Fourier equation used to calculate the thermal conductivity coefficient(k) to obtained composite material and. the results obtained from thermal conductivity test show that the thermal conducting value of natural palms fibers higher than reinforcing with carbon and hybrid fibers .

Abstract Aluminum matrix composites AMCS with 10 wt % Al2O3 particles with average size (3.86 µm) were fabricated by stir casting method, then the composite produced coated with Antimony Trioxide (Sb2O3) by hot dipping coating process. Thermal conductivity of composite materials with and without coating was estimated by applying Fourier equation to investigate its behavior under different temperature conditions. Results revealed that coating with antimony trioxide decreased the thermal conductivity (k) of composite material. The thermal conductivity of the master composite material was (207 W/mC) at (80 C) and (182 W/mC) of the coated composite material at same temperature.