Load transfer strengthening in carbon nanotubes reinforced metal matrix composites via in-situ tensile tests

Biao Chen; Shufeng Li; Hisashi Imai; Lei Jia; Junko Umeda; Makoto Takahashi; Katsuyoshi Kondoh

doi:10.1016/j.compscitech.2015.03.009

Load transfer strengthening in carbon nanotubes reinforced metal matrix composites via in-situ tensile tests

Biao Chen, Shufeng Li, Hisashi Imai, Lei Jia, Junko Umeda, Makoto Takahashi, Katsuyoshi Kondoh

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

267 Scopus citations

Abstract

In-situ observation of tensile tests were performed to investigate the strengthening mechanisms of multi-walled carbon nanotube (MWCNT) reinforced Al matrix composites (AMCs). Carbon nanotubes (CNTs) were effectively incorporated and aligned in AMCs through a conventional powder metallurgy route. During tensile failure, the fracture process of CNTs in fabricated AMCs was clearly observed, suggesting the effective load transfer between the matrix and CNTs, and between inner walls of MWCNTs. Due to the small reinforcing effect of other factors, load transfer strengthening dominantly contributed to the observed high strengthening efficiency in CNT/Al composite, agreeing with the predicted results of the shear-lag model. This study provided evidence supporting the theory behind load transfer strengthening mechanisms of CNTs in metal matrix composites.

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	Composites Science and Technology
Volume	113
DOIs	https://doi.org/10.1016/j.compscitech.2015.03.009
State	Published - 5 Jun 2015
Externally published	Yes

Keywords

A. Carbon nanotube
A. Metal-matrix composites (MMCs)
B. Fracture
Load transfer

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10.1016/j.compscitech.2015.03.009

Cite this

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title = "Load transfer strengthening in carbon nanotubes reinforced metal matrix composites via in-situ tensile tests",

abstract = "In-situ observation of tensile tests were performed to investigate the strengthening mechanisms of multi-walled carbon nanotube (MWCNT) reinforced Al matrix composites (AMCs). Carbon nanotubes (CNTs) were effectively incorporated and aligned in AMCs through a conventional powder metallurgy route. During tensile failure, the fracture process of CNTs in fabricated AMCs was clearly observed, suggesting the effective load transfer between the matrix and CNTs, and between inner walls of MWCNTs. Due to the small reinforcing effect of other factors, load transfer strengthening dominantly contributed to the observed high strengthening efficiency in CNT/Al composite, agreeing with the predicted results of the shear-lag model. This study provided evidence supporting the theory behind load transfer strengthening mechanisms of CNTs in metal matrix composites.",

keywords = "A. Carbon nanotube, A. Metal-matrix composites (MMCs), B. Fracture, Load transfer",

author = "Biao Chen and Shufeng Li and Hisashi Imai and Lei Jia and Junko Umeda and Makoto Takahashi and Katsuyoshi Kondoh",

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year = "2015",

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doi = "10.1016/j.compscitech.2015.03.009",

language = "英语",

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TY - JOUR

T1 - Load transfer strengthening in carbon nanotubes reinforced metal matrix composites via in-situ tensile tests

AU - Chen, Biao

AU - Li, Shufeng

AU - Imai, Hisashi

AU - Jia, Lei

AU - Umeda, Junko

AU - Takahashi, Makoto

AU - Kondoh, Katsuyoshi

PY - 2015/6/5

Y1 - 2015/6/5

N2 - In-situ observation of tensile tests were performed to investigate the strengthening mechanisms of multi-walled carbon nanotube (MWCNT) reinforced Al matrix composites (AMCs). Carbon nanotubes (CNTs) were effectively incorporated and aligned in AMCs through a conventional powder metallurgy route. During tensile failure, the fracture process of CNTs in fabricated AMCs was clearly observed, suggesting the effective load transfer between the matrix and CNTs, and between inner walls of MWCNTs. Due to the small reinforcing effect of other factors, load transfer strengthening dominantly contributed to the observed high strengthening efficiency in CNT/Al composite, agreeing with the predicted results of the shear-lag model. This study provided evidence supporting the theory behind load transfer strengthening mechanisms of CNTs in metal matrix composites.

AB - In-situ observation of tensile tests were performed to investigate the strengthening mechanisms of multi-walled carbon nanotube (MWCNT) reinforced Al matrix composites (AMCs). Carbon nanotubes (CNTs) were effectively incorporated and aligned in AMCs through a conventional powder metallurgy route. During tensile failure, the fracture process of CNTs in fabricated AMCs was clearly observed, suggesting the effective load transfer between the matrix and CNTs, and between inner walls of MWCNTs. Due to the small reinforcing effect of other factors, load transfer strengthening dominantly contributed to the observed high strengthening efficiency in CNT/Al composite, agreeing with the predicted results of the shear-lag model. This study provided evidence supporting the theory behind load transfer strengthening mechanisms of CNTs in metal matrix composites.

KW - A. Carbon nanotube

KW - A. Metal-matrix composites (MMCs)

KW - B. Fracture

KW - Load transfer

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U2 - 10.1016/j.compscitech.2015.03.009

DO - 10.1016/j.compscitech.2015.03.009

M3 - 文章

AN - SCOPUS:84925360066

SN - 0266-3538

VL - 113

SP - 1

EP - 8

JO - Composites Science and Technology

JF - Composites Science and Technology

ER -

Load transfer strengthening in carbon nanotubes reinforced metal matrix composites via in-situ tensile tests

Abstract

Keywords

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