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Fabrication and Properties of dispersed carbon nanotube�Al6061 composites

ManjunathaL.H. P.Dinesh

Powder metallurgy techniques have emerged as promising routes for the fabrication of carbon nanotube (CNT) reinforced metal matrix composites. In this present work has been made to investigate the mechanical properties of the fabricated Composites. Al6061 alloys as matrix and Multiwall Carbon Nanotube (MWCNT) as reinforcement (0, 0.5, 1.0 ,1.5,2 ,2.5 & 3 weight percentage) have been fabricated by powder metallurgy process. Al6061 powder (200 mesh) and multiwalled carbon nano tubes (Nanoshell.,USA) were procured from different sources available in the market. The two materials were properly mixed for different composition by using ball mill ,to mix uniformly CNT‘s with Aluminium powder. Compacting die was used to compact the powder by using 40Ton capacity hydraulic press, after compacting the powder in to solid billet. A low cost sintering furnace was designed and fabricated for current research work. Sintered billets were hot extruded using hot extrusion set up. Samples were prepared for various compositions and the samples were investigated for microstructure, using optical microscope and SEM Apparatus and also tested for strength.