Abstract
The utilization of aluminum alloy grows rapidly in automobile and aerospace industries due to its low weight to high strength. Going a step further, with the process of reinforcing MWCNT (multi walled carbon nanotubes) gives better properties with an observable decrease in its overall weight. In the present investigation, increasing of CNT wt% with ball milling time on hardness and micro structure of metal matrix composite is studied. Multi wall carbon nanotubes are mixed uniformly with Aluminum silicon alloy powder in the weight percentage of 0, 0.25, 0.50 & 0.75 using high energy ball milling process. Followed by compaction to prepare a specimen size of 20 mm diameter and 20 mm length. Sintering and extrusion process combined to utilize the heat of sintering and thus gives the final specimen with size of 8 mm diameter and 60 mm length. Finally, the Micro structural analysis (XRD, SEM WITH EDAX and OM) are performed for each composition which was followed by Vickers hardness test.
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