Abstract
Ceramics contain a distinctive property of completely absence of slip planes and have least
probability of deforming by the application of force. Among these ceramics, the silicon carbide
occupies a competent place to be used as a reinforcing agent for aluminum or its alloys. It has the
density close to aluminum and is best for making composite having good strength and good heat
conductivity. Stir casting has been used to synthesize Al/SiC MMCs by reinforcing silicon carbide
particles into aluminum matrix. The reason for using stir casting is to develop technology for the
development of MMCs at affordable cost. The selection of SiC as reinforcement and Al as matrix is
because of their easy availability. The practical data acquired, analyzed and optimized will be
interpreted in the light of information available in the literature and be shared with the relevant
industries. The present work was mainly carried out to characterize the SiC/Al composite which was
produced by reinforcing the various proportions of SiC (5, 10, 15, 25 and 30%) in aluminum matrix
using stir casting technique. Mechanical properties of test specimens made from stir-casted
Aluminum-Silicon Carbide composites have been studied using metallographic and mechanical testing
techniques. It was observed that as the volume fraction of SiC in the composite is gradually
increased, the hardness and toughness increase. However, beyond a level of 25-30 percent SiC, the
results are not very consistent, and depend largely on the uniformity of distribution of SiC in the
aluminum matrix
Khalid Mahmood Ghauri, Liaqat Ali, Akhlaq Ahmad, Rafiq Ahmad, Kashif Meraj Din, Ijaz Ahmad Chaudhary, Ramzan Abdul Karim. (2013) Synthesis and Characterization of Al/SiC Composite Made by Stir Casting Method, Pakistan Journal of Engineering and Applied Sciences, Volume 12, Issue 1.
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