Fabrication and characterization of Al-matrix composites reinforced with amino-functionalized carbon nanotubes

S. K. Singhal; Renu Pasricha; Satish Teotia; Girish Kumar; R. B. Mathur

doi:10.1016/j.compscitech.2011.10.007

Fabrication and characterization of Al-matrix composites reinforced with amino-functionalized carbon nanotubes

S. K. Singhal, Renu Pasricha, Satish Teotia, Girish Kumar, R. B. Mathur

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Abstract

We report the fabrication of Al-matrix composites reinforced with amino-functionalized carbon nanotubes (fCNTs) using powder metallurgy process. Functionalization of the nanotubes was carried out by ball milling multiwalled carbon nanotubes (MWCNTs) in the presence of ammonium bicarbonate. It has been found that the mechanical properties of Al-fCNT composites were much superior to the composites fabricated using non-functionalized or acid functionalized carbon nanotubes. The enhancement in mechanical properties in these composites are attributed mainly to the better and homogeneous dispersion of fCNT in Al matrix as compared to non-functionalized or acid functionalized carbon nanotubes and the formation of a strong interfacial bonding between fCNT and Al matrix leading to an efficient load transfer from Al matrix to fCNT following high-resolution transmission electron microscopy.

Original language	English (US)
Pages (from-to)	103-111
Number of pages	9
Journal	Composites Science and Technology
Volume	72
Issue number	1
DOIs	https://doi.org/10.1016/j.compscitech.2011.10.007
State	Published - Dec 6 2011

Keywords

A. Carbon nanotubes
A. Metal-matrix composites (MMCs)
B. Mechanical properties
D. Scanning/transmission electron microscopy (STEM)
E. Sintering

ASJC Scopus subject areas

Ceramics and Composites
General Engineering

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10.1016/j.compscitech.2011.10.007

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title = "Fabrication and characterization of Al-matrix composites reinforced with amino-functionalized carbon nanotubes",

abstract = "We report the fabrication of Al-matrix composites reinforced with amino-functionalized carbon nanotubes (fCNTs) using powder metallurgy process. Functionalization of the nanotubes was carried out by ball milling multiwalled carbon nanotubes (MWCNTs) in the presence of ammonium bicarbonate. It has been found that the mechanical properties of Al-fCNT composites were much superior to the composites fabricated using non-functionalized or acid functionalized carbon nanotubes. The enhancement in mechanical properties in these composites are attributed mainly to the better and homogeneous dispersion of fCNT in Al matrix as compared to non-functionalized or acid functionalized carbon nanotubes and the formation of a strong interfacial bonding between fCNT and Al matrix leading to an efficient load transfer from Al matrix to fCNT following high-resolution transmission electron microscopy.",

keywords = "A. Carbon nanotubes, A. Metal-matrix composites (MMCs), B. Mechanical properties, D. Scanning/transmission electron microscopy (STEM), E. Sintering",

author = "Singhal, {S. K.} and Renu Pasricha and Satish Teotia and Girish Kumar and Mathur, {R. B.}",

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T1 - Fabrication and characterization of Al-matrix composites reinforced with amino-functionalized carbon nanotubes

AU - Singhal, S. K.

AU - Pasricha, Renu

AU - Teotia, Satish

AU - Kumar, Girish

AU - Mathur, R. B.

PY - 2011/12/6

Y1 - 2011/12/6

N2 - We report the fabrication of Al-matrix composites reinforced with amino-functionalized carbon nanotubes (fCNTs) using powder metallurgy process. Functionalization of the nanotubes was carried out by ball milling multiwalled carbon nanotubes (MWCNTs) in the presence of ammonium bicarbonate. It has been found that the mechanical properties of Al-fCNT composites were much superior to the composites fabricated using non-functionalized or acid functionalized carbon nanotubes. The enhancement in mechanical properties in these composites are attributed mainly to the better and homogeneous dispersion of fCNT in Al matrix as compared to non-functionalized or acid functionalized carbon nanotubes and the formation of a strong interfacial bonding between fCNT and Al matrix leading to an efficient load transfer from Al matrix to fCNT following high-resolution transmission electron microscopy.

AB - We report the fabrication of Al-matrix composites reinforced with amino-functionalized carbon nanotubes (fCNTs) using powder metallurgy process. Functionalization of the nanotubes was carried out by ball milling multiwalled carbon nanotubes (MWCNTs) in the presence of ammonium bicarbonate. It has been found that the mechanical properties of Al-fCNT composites were much superior to the composites fabricated using non-functionalized or acid functionalized carbon nanotubes. The enhancement in mechanical properties in these composites are attributed mainly to the better and homogeneous dispersion of fCNT in Al matrix as compared to non-functionalized or acid functionalized carbon nanotubes and the formation of a strong interfacial bonding between fCNT and Al matrix leading to an efficient load transfer from Al matrix to fCNT following high-resolution transmission electron microscopy.

KW - A. Carbon nanotubes

KW - A. Metal-matrix composites (MMCs)

KW - B. Mechanical properties

KW - D. Scanning/transmission electron microscopy (STEM)

KW - E. Sintering

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Fabrication and characterization of Al-matrix composites reinforced with amino-functionalized carbon nanotubes

Abstract

Keywords

ASJC Scopus subject areas

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