Fabrication of multi-walled carbon nanotubes–aluminum matrix composite by powder metallurgy technique
- Bunakov, N.A.
- Kozlov, D.V.
- Golovanov, V.N.
- Klimov, E.S.
- Grebchuk, E.E.
- Efimov, M.S.
- Kostishko, B.B.
Publication date
December 2016
DOI Publisher
The Authors. Published by Elsevier B.V. ISSN
2211-3797Abstract
AbstractWe report on fabrication of an aluminum matrix composite containing multi-walled carbon nanotubes (MWCNTs) produced by MOCVD method and functionalized via acid treatment by a H2SO4/HNO3 mixture.Specimens were prepared by spark plasma sintering (SPS) of the aluminum powder with different amounts of functionalized MWCNTs (FMWCNTs) in the range of 0.1–1wt.%. We studied the effect of FMWCNTs amount on microstructure and mechanical properties of composites. It is shown that functionalization allows homogeneous dispersing of the MWCNTs in Al powder. The maximal increase in micro-hardness and tensile strength is registered at 0.1wt.%
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