期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：9
页码：8362
DOI：10.15680/IJIRSET.2015.0409050
出版社：S&S Publications
摘要：The present work focuses on the fabrication of reinforced with 12 wt. % of B4C particulates through ballmilling. Ethanol (5 wt. %) has been used as a process control agent (PCA). In this work, mechanical alloying was usedto synthesize aluminium matrix composite powder in a conventional ball mill under argon atmosphere with differentmilling time of 5, 10 and 15 hours. The ball to powder weight ratio was maintained at 10:1. Scanning electronmicroscopy (SEM) of the ball milled powder shows that addition of boron carbide particles accelerates the millingprocess, leading to a faster work hardening rate and fracture of aluminum matrix. SEM images show that distribution ofboron carbide particles in aluminum matrix reaches a full homogeneity when steady state takes place.Energy-dispersiveX-ray spectroscopy (EDX) is performed to check the contamination of composites during the mechanical alloying.Green densities and Hardness of each composite have been calculated.The Hardness of the composites was increasedwith increase in the milling time.
关键词：Composite; Mechanical alloying; SEM; EDX; Hardness; Green density.
