Strength and strain hardening of aluminum matrix composites with randomly dispersed nanometer-length fragmented carbon nanotubes

被引：171

作者：

Yoo, S. J. ^{[1
]}

Han, S. H. ^{[2
]}

Kim, W. J. ^{[1
]}

机构：

[1] Hongik Univ, Dept Mat Sci & Engn, Seoul 121791, South Korea

[2] Korea Inst Mat Sci, Chang Won 642831, Gyeongnam, South Korea

来源：

SCRIPTA MATERIALIA | 2013年 / 68卷 / 09期

关键词：

Ball mill; Rolling; Metal matrix composites; Carbon nanotubes; Work hardening; LOAD-TRANSFER; DEFORMATION; STRESS; METALS;

D O I：

10.1016/j.scriptamat.2013.01.013

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Carbon nanotube (CNT)-reinforced aluminum composites were fabricated through ball milling combined with rolling. The composites exhibit high strength and high strain-hardening ability, the combination of which has been rarely reported. During the ball-milling process, CNTs were broken and became low aspect ratio tubes. The processed composites had the CNTs (a few dozen nanometers in size) randomly and uniformly dispersed in their grain interiors. This type of CNT distribution contributed to work hardening and strengthening by the Orowan mechanism. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：711 / 714

页数：4

共 25 条

[1] THE ROLE OF EQUIAXED PARTICLES ON THE YIELD STRESS OF COMPOSITES [J].

AIKIN, RM ;

CHRISTODOULOU, L .

SCRIPTA METALLURGICA ET MATERIALIA, 1991, 25 (01) :9-14

[2]

[Anonymous], ACTA METALL

[3]

Ashby M.F., 1982, DEFORMATION MECH MAP

[4] Unusually high thermal conductivity of carbon nanotubes [J].

Berber, S ;

Kwon, YK ;

Tománek, D .

PHYSICAL REVIEW LETTERS, 2000, 84 (20) :4613-4616

[5] Reinforcing effects of carbon nanotubes in structural aluminum matrix nanocomposites [J].

Choi, Hyunjoo ;

Shin, Jaehyuck ;

Min, Byungho ;

Park, Junsik ;

Bae, Donghyun .

JOURNAL OF MATERIALS RESEARCH, 2009, 24 (08) :2610-2616

[6] Fabrication and properties of dispersed carbon nanotube-aluminum composites [J].

Esawi, A. M. K. ;

Morsi, K. ;

Sayed, A. ;

Gawad, A. Abdel ;

Borah, P. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 508 (1-2) :167-173

[7] Strengthening in carbon nanotube/aluminium (CNT/Al) composites [J].

George, R ;

Kashyap, KT ;

Raw, R ;

Yamdagni, S .

SCRIPTA MATERIALIA, 2005, 53 (10) :1159-1163

[8] The use of flake powder metallurgy to produce carbon nanotube (CNT)/aluminum composites with a homogenous CNT distribution [J].

Jiang, Lin ;

Li, Zhiqiang ;

Fan, Genlian ;

Cao, Linlin ;

Zhang, Di .

CARBON, 2012, 50 (05) :1993-1998

[9] TENSILE PROPERTIES OF FIBRE-REINFORCED METALS - COPPER/TUNGSTEN AND COPPER/MOLYBDENUM [J].

KELLY, A ;

TYSON, WR .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1965, 13 (06) :329-&

[10] Combination of hot extrusion and spark plasma sintering for producing carbon nanotube reinforced aluminum matrix composites [J].

Kwon, Hansang ;

Estili, Mehdi ;

Takagi, Kenta ;

Miyazaki, Takamichi ;

Kawasaki, Akira .

CARBON, 2009, 47 (03) :570-577

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