Abstract
The effect of addition of multiwalled carbon nanotubes-exfoliated graphite nanoplatelets (MWCNT-xGnP) hybrid nanofiller on the mechanical properties of aluminium (Al) has been reported. MWCNT-xGnP hybrids having MWCNT to xGnP weight ratios of 1:9, 3:7, 1:1, 7:3 and 9:1 were synthesized and 1, 2, 3, and 5 wt% of all the hybrids were added to the Al powder to develop Al-MWCNT-xGnP nanocomposites. The highest hardness for the conventionally sintered nanocomposites was observed in the case of Al-2 wt% MWCNT50xGnP50 nanocomposite (463 MPa) whereas for spark plasma sintered (SPSed) nanocomposites the hardness was found to increase with the increase in hybrid nanofiller content and the highest hardness was observed for Al-5 wt% MWCNT50xGnP50 nanocomposite (645.2 MPa). For both conventionally sintered and SPSed nanocomposites the best wear resistance was achieved in the case of Al-2 wt% MWCNT50xGnP50 nanocomposite.
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