Fabrication of multi-walled carbon nanotubes–aluminum matrix composite by powder metallurgy technique

We 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...

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Bibliographic Details
Published inResults in physics Vol. 6; pp. 231 - 232
Main Authors Bunakov, N.A., Kozlov, D.V., Golovanov, V.N., Klimov, E.S., Grebchuk, E.E., Efimov, M.S., Kostishko, B.B.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2016
Elsevier
Subjects
Functionalization
Micro-hardness
Microstructure
Multi-walled carbon nanotubes
Spark plasma sintering
Tensile strength
Spark plasma sintering
Micro-hardness
Functionalization
Multi-walled carbon nanotubes
Microstructure
Tensile strength
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Summary:We 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.%.
ISSN:2211-3797
2211-3797
DOI:10.1016/j.rinp.2016.04.013