Interfacial in-situ Al2O3 nanoparticles enhance load transfer in carbon nanotube (CNT)-reinforced aluminum matrix composites

B. Chen; K. Kondoh; J. Umeda; S. Li; L. Jia; J. Li

doi:10.1016/j.jallcom.2019.03.063

Interfacial in-situ Al₂O₃ nanoparticles enhance load transfer in carbon nanotube (CNT)-reinforced aluminum matrix composites

B. Chen, K. Kondoh, J. Umeda, S. Li, L. Jia, J. Li

School of Materials Sience and Engineering

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

70 Scopus citations

Abstract

Dissatisfactory load transfer has been a critical issue in carbon nanotube (CNT)- and graphene-reinforced metal matrix composites (MMCs) mainly because of the intrinsically unpleasant carbon-metal interfaces. Here we show by introducing in-situ Al₂O₃ nanoparticles at aluminum (Al)-CNTs interface, the load transfer efficiency can be noticeably enhanced in powder metallurgy CNTs/Al composites. From in-situ tensile tests, the nanoparticle-modified Al-CNTs interfaces result in CNT fracture, a sign of high load transfer efficiency; while clean interfaces without nanoparticles lead to CNT pulling-out. The nanoparticle-induced enhancement of interface strength can be explained by the increased sliding resistance of CNTs in MMCs at the wake of cracks under tensile loading. Our study provides a new strategy for designing strong carbon-metal interfaces to fabricate high-performance nanocarbon-reinforced MMCs.

Original language	English
Pages (from-to)	25-29
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	789
DOIs	https://doi.org/10.1016/j.jallcom.2019.03.063
State	Published - 15 Jun 2019

Keywords

Carbon nanotubes (CNTs)
Fracture
Interface
Metal-matrix composites (MMCs)
Nanoparticles

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10.1016/j.jallcom.2019.03.063

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title = "Interfacial in-situ Al2O3 nanoparticles enhance load transfer in carbon nanotube (CNT)-reinforced aluminum matrix composites",

abstract = "Dissatisfactory load transfer has been a critical issue in carbon nanotube (CNT)- and graphene-reinforced metal matrix composites (MMCs) mainly because of the intrinsically unpleasant carbon-metal interfaces. Here we show by introducing in-situ Al2O3 nanoparticles at aluminum (Al)-CNTs interface, the load transfer efficiency can be noticeably enhanced in powder metallurgy CNTs/Al composites. From in-situ tensile tests, the nanoparticle-modified Al-CNTs interfaces result in CNT fracture, a sign of high load transfer efficiency; while clean interfaces without nanoparticles lead to CNT pulling-out. The nanoparticle-induced enhancement of interface strength can be explained by the increased sliding resistance of CNTs in MMCs at the wake of cracks under tensile loading. Our study provides a new strategy for designing strong carbon-metal interfaces to fabricate high-performance nanocarbon-reinforced MMCs.",

keywords = "Carbon nanotubes (CNTs), Fracture, Interface, Metal-matrix composites (MMCs), Nanoparticles",

author = "B. Chen and K. Kondoh and J. Umeda and S. Li and L. Jia and J. Li",

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year = "2019",

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doi = "10.1016/j.jallcom.2019.03.063",

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T1 - Interfacial in-situ Al2O3 nanoparticles enhance load transfer in carbon nanotube (CNT)-reinforced aluminum matrix composites

AU - Chen, B.

AU - Kondoh, K.

AU - Umeda, J.

AU - Li, S.

AU - Jia, L.

AU - Li, J.

PY - 2019/6/15

Y1 - 2019/6/15

N2 - Dissatisfactory load transfer has been a critical issue in carbon nanotube (CNT)- and graphene-reinforced metal matrix composites (MMCs) mainly because of the intrinsically unpleasant carbon-metal interfaces. Here we show by introducing in-situ Al2O3 nanoparticles at aluminum (Al)-CNTs interface, the load transfer efficiency can be noticeably enhanced in powder metallurgy CNTs/Al composites. From in-situ tensile tests, the nanoparticle-modified Al-CNTs interfaces result in CNT fracture, a sign of high load transfer efficiency; while clean interfaces without nanoparticles lead to CNT pulling-out. The nanoparticle-induced enhancement of interface strength can be explained by the increased sliding resistance of CNTs in MMCs at the wake of cracks under tensile loading. Our study provides a new strategy for designing strong carbon-metal interfaces to fabricate high-performance nanocarbon-reinforced MMCs.

AB - Dissatisfactory load transfer has been a critical issue in carbon nanotube (CNT)- and graphene-reinforced metal matrix composites (MMCs) mainly because of the intrinsically unpleasant carbon-metal interfaces. Here we show by introducing in-situ Al2O3 nanoparticles at aluminum (Al)-CNTs interface, the load transfer efficiency can be noticeably enhanced in powder metallurgy CNTs/Al composites. From in-situ tensile tests, the nanoparticle-modified Al-CNTs interfaces result in CNT fracture, a sign of high load transfer efficiency; while clean interfaces without nanoparticles lead to CNT pulling-out. The nanoparticle-induced enhancement of interface strength can be explained by the increased sliding resistance of CNTs in MMCs at the wake of cracks under tensile loading. Our study provides a new strategy for designing strong carbon-metal interfaces to fabricate high-performance nanocarbon-reinforced MMCs.

KW - Carbon nanotubes (CNTs)

KW - Fracture

KW - Interface

KW - Metal-matrix composites (MMCs)

KW - Nanoparticles

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DO - 10.1016/j.jallcom.2019.03.063

M3 - 文章

AN - SCOPUS:85062468084

SN - 0925-8388

VL - 789

SP - 25

EP - 29

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Interfacial in-situ Al₂O₃ nanoparticles enhance load transfer in carbon nanotube (CNT)-reinforced aluminum matrix composites

Abstract

Keywords

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