화학공학소재연구정보센터
Journal of Materials Science, Vol.49, No.7, 2894-2903, 2014
Electrical conductivity of a novel cast 6351 Al-Al4SiC4 in situ composite
In this research work, electrical conductivity of a novel cast 6351 Al-Al4SiC4 composite has been studied for varying Al4SiC4 particle content (2-7 vol%). Analytical models were developed on the basis of free electron theory and local resistance approach in order to predict electrical conductivity of metal matrix composites. The electrical conductivity of cast 6351 Al-Al4SiC4 composite was found to decrease with increasing Al4SiC4 content. Overprediction of results and more % deviation of the predicted electrical conductivity from experimental value were observed for local-resistance-approach-based model. However, the model developed on the basis of electron theory considering scattering of electrons at particle-matrix interface accurately predicted the experimental electrical conductivity data.