The influence of carbon nanotube (CNT) morphology and diameter on the processing and properties of CNT-reinforced aluminium composites

被引：232
作者：
Esawi, A. M. K. [1 ,2 ]
Morsi, K. [3 ]
Sayed, A. [1 ,2 ]
Taher, M. [1 ,2 ]
Lanka, S. [3 ]
机构：
[1] Amer Univ Cairo, Dept Mech Engn, New Cairo 11835, Egypt
[2] Amer Univ Cairo, Yousef Jameel Sci & Technol Res Ctr, New Cairo 11835, Egypt
[3] San Diego State Univ, Dept Mech Engn, San Diego, CA 92182 USA
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2011年 / 42卷 / 03期
基金：
美国国家科学基金会;
关键词：
Discontinuous reinforcement; Nano-structures; Metal-matrix composites (MMCs); Mechanical properties; MATRIX COMPOSITES; POWDERS; FABRICATION;
D O I：
10.1016/j.compositesa.2010.11.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ball milling was used to disperse MWCNTs of two different morphologies (stiff and straight vs. bent and entangled) and diameters (very large diameter and 3.5 times smaller diameter) in aluminium powders, which were subsequently hot consolidated by hot extrusion. Characterization of the produced composites revealed that the CNT morphology plays an important role in affecting dispersion. It was found that the smaller diameter bent and entangled CNTs were more difficult to disperse with increase in CNT content compared to the larger diameter stiff and straight ones; which in turn affected the tensile properties and hardness of the composites. Furthermore, cold welding of the milled powders as well as carbide formation in the final composite was found to depend on the CNT diameter. The smaller diameter CNTs - having a larger effective interfacial contact area with the aluminium matrix compared to the larger ones for a given CNT wt.% - were found to reduce particle welding during milling and to be more affected by carbide formation. Nano-sized particles of aluminium oxide as well as nano-rods of aluminium carbide, in addition to CNT damage were observed upon TEM analysis of the smaller diameter CNTs. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：234 / 243
页数：10
相关论文
共 29 条
[1]   Reinforcement with carbon nanotubes in aluminum matrix composites [J].
Choi, H. J. ;
Kwon, G. B. ;
Lee, G. Y. ;
Bae, D. H. .
SCRIPTA MATERIALIA, 2008, 59 (03) :360-363
[2]   Investigation of the interfacial reaction between multi-walled carbon nanotubes and aluminum [J].
Ci, Lijie ;
Ryu, Zhenyu ;
Jin-Phillipp, Neng Yun ;
Ruehle, Manfred .
ACTA MATERIALIA, 2006, 54 (20) :5367-5375
[3]   Small but strong: A review of the mechanical properties of carbon nanotube-polymer composites [J].
Coleman, Jonathan N. ;
Khan, Umar ;
Blau, Werner J. ;
Gun'ko, Yurii K. .
CARBON, 2006, 44 (09) :1624-1652
[4]   CNT-reinforced ceramics and metals [J].
Curtin, William A. ;
Sheldon, Brian W. .
MATERIALS TODAY, 2004, 7 (11) :44-49
[5]   Electrical and mechanical properties of carbon nanotube reinforced copper nanocomposites fabricated by electroless deposition process [J].
Daoush, Walid M. ;
Lim, Byung K. ;
Mo, Chan B. ;
Nam, Dong H. ;
Hong, Soon H. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 513-14 :247-253
[6]   Processing and properties of carbon nanotubes reinforced aluminum composites [J].
Deng, C. F. ;
Wang, D. Z. ;
Zhang, X. X. ;
Li, A. B. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 444 (1-2) :138-145
[7]   Dispersion of carbon nanotubes (CNTs) in aluminum powder [J].
Esawi, A. ;
Morsi, K. .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2007, 38 (02) :646-650
[8]   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
[9]   Carbon nanotube-reinforced aluminium strips [J].
Esawi, Amal M. K. ;
El Borady, Mostafa A. .
COMPOSITES SCIENCE AND TECHNOLOGY, 2008, 68 (02) :486-492
[10]  
ESAWI AMK, COMPOS SCI IN PRESS
123