Combination of hot extrusion and spark plasma sintering for producing carbon nanotube reinforced aluminum matrix composites

Hansang Kwon; Mehdi Estili; Kenta Takagi; Takamichi Miyazaki; Akira Kawasaki

doi:10.1016/j.carbon.2008.10.041

Combination of hot extrusion and spark plasma sintering for producing carbon nanotube reinforced aluminum matrix composites

Hansang Kwon, Mehdi Estili, Kenta Takagi, Takamichi Miyazaki, Akira Kawasaki

ENG - Materials Processing

Research output: Contribution to journal › Article › peer-review

517 Citations (Scopus)

Abstract

Aluminum (Al)/carbon nanotube (CNT) composites with nanoscale dispersion and regular orientation of the CNTs were fabricated by a combination of some advanced powder processes. The CNTs were well dispersed onto the Al particles by a nanoscale dispersion method. Moreover, the highly densified CNT composites were prepared by spark plasma sintering and subsequent hot extrusion. Microstructural observations by optical, field-emission scanning electron, and high-resolution transmission electron microscopies confirmed that the sintered Al/CNT compact and extruded bulk material had a good dispersion of oriented CNTs. Raman spectroscopy showed that the processing did little damage to the CNTs. As a result, the composites exhibited tensile strengths that were thrice larger than pure aluminum because of the CNT reinforcement.

Original language	English
Pages (from-to)	570-577
Number of pages	8
Journal	Carbon
Volume	47
Issue number	3
DOIs	https://doi.org/10.1016/j.carbon.2008.10.041
Publication status	Published - 2009 Mar 1

ASJC Scopus subject areas

Chemistry(all)

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10.1016/j.carbon.2008.10.041

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abstract = "Aluminum (Al)/carbon nanotube (CNT) composites with nanoscale dispersion and regular orientation of the CNTs were fabricated by a combination of some advanced powder processes. The CNTs were well dispersed onto the Al particles by a nanoscale dispersion method. Moreover, the highly densified CNT composites were prepared by spark plasma sintering and subsequent hot extrusion. Microstructural observations by optical, field-emission scanning electron, and high-resolution transmission electron microscopies confirmed that the sintered Al/CNT compact and extruded bulk material had a good dispersion of oriented CNTs. Raman spectroscopy showed that the processing did little damage to the CNTs. As a result, the composites exhibited tensile strengths that were thrice larger than pure aluminum because of the CNT reinforcement.",

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AU - Kwon, Hansang

AU - Estili, Mehdi

AU - Takagi, Kenta

AU - Miyazaki, Takamichi

AU - Kawasaki, Akira

PY - 2009/3/1

Y1 - 2009/3/1

N2 - Aluminum (Al)/carbon nanotube (CNT) composites with nanoscale dispersion and regular orientation of the CNTs were fabricated by a combination of some advanced powder processes. The CNTs were well dispersed onto the Al particles by a nanoscale dispersion method. Moreover, the highly densified CNT composites were prepared by spark plasma sintering and subsequent hot extrusion. Microstructural observations by optical, field-emission scanning electron, and high-resolution transmission electron microscopies confirmed that the sintered Al/CNT compact and extruded bulk material had a good dispersion of oriented CNTs. Raman spectroscopy showed that the processing did little damage to the CNTs. As a result, the composites exhibited tensile strengths that were thrice larger than pure aluminum because of the CNT reinforcement.

AB - Aluminum (Al)/carbon nanotube (CNT) composites with nanoscale dispersion and regular orientation of the CNTs were fabricated by a combination of some advanced powder processes. The CNTs were well dispersed onto the Al particles by a nanoscale dispersion method. Moreover, the highly densified CNT composites were prepared by spark plasma sintering and subsequent hot extrusion. Microstructural observations by optical, field-emission scanning electron, and high-resolution transmission electron microscopies confirmed that the sintered Al/CNT compact and extruded bulk material had a good dispersion of oriented CNTs. Raman spectroscopy showed that the processing did little damage to the CNTs. As a result, the composites exhibited tensile strengths that were thrice larger than pure aluminum because of the CNT reinforcement.

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Combination of hot extrusion and spark plasma sintering for producing carbon nanotube reinforced aluminum matrix composites

Abstract

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