Processing and characterisation of MWCNT reinforced aluminum matrix composites
Narayanan, Karthic R.
Date of Issue2009
School of Mechanical and Aerospace Engineering
Metal matrix composites comprising aluminum matrix and multi-wall carbon nanotubes (MWCNTs) as reinforcements are fabricated using cold uniaxial compaction followed by sintering and cold extrusion as secondary processes. The MWCNTs are pretreated with sodium dodecyl sulfate (SDS) for improved adhesion with aluminum powder. The effect of sintering temperature on the microstructure is explored using differential scanning calorimetric (DSC) spectrum. The tensile yield and ultimate strength of Al/MWCNTs increased to 90% with 2 wt% addition of MWCNTs. Various theories for the strengthening and stiffening of Al/MWCNTs composites are explored.
Journal of materials science
© 2009 Springer. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Materials Science, Springer. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org/10.1007/s10853-009-3290-5.