Paper Title:
Nanoindentation of Multi-Wall CNT Reinforced Al Composites
  Abstract

This work used nanoindentation to characterize the local mechanical properties of the multi-wall carbon nanotube (MWCNT) reinforced aluminum (Al) composites. The Al-MWCNT (0.5, 1.0 and 2.0 wt.%) specimens were fabricated by spark plasma sintering (SPS) followed by hot extrusion. Different local regions of the as-extruded and tensile-fractured specimen over the longitudinal and transverse section were studied by nanoindentation. The nanoindentation results were compared with the conventional macro- and mircoscopic mechanical tests, and were found in good agreement. The values of hardness (H) and elastic modulus (E) obtained reached maximum at the 0.5 wt.% MWCNT adding Al samples. E was highest in the necking region then decreased with increasing distance from the localized deformed region; while H varied in different regions. In the same region, H and V were higher in the longitudinal than those in the transverse direction, due to the texture hardening and alignment of CNT.

  Info
Periodical
Key Engineering Materials (Volumes 447-448)
Edited by
Jianhong Zhao, Masanori Kunieda, Guilin Yang and Xue-Ming Yuan
Pages
549-553
DOI
10.4028/www.scientific.net/KEM.447-448.549
Citation
J. Z. Liao, J. J. Pang, M. J. Tan, "Nanoindentation of Multi-Wall CNT Reinforced Al Composites", Key Engineering Materials, Vols. 447-448, pp. 549-553, 2010
Online since
September 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Guo Hua Zhou, Xiao Shu Zeng, Qiang Xu
Abstract:Carbon Nanotubes /AZ31 alloy composites were fabricated by joining preform of CNTs during melting under the protection of Ar. Composites were...
1628
Authors: Jin Zhi Liao, Ming Jen Tan, Raju V. Ramanujan, Shashwat Shukla
Chapter 5: Microstructure and Properties
Abstract:In this study, carbon nanotube (CNT) reinforced aluminum (Al) composite was fabricated by powder metallurgy (P/M) technique and the evolution...
294
Authors: Gwi Nam Kim, Hyun Ji Kim, Sun Chul Huh
Chapter 1: Materials Processing Technologies and Analysis, Materials Engineering
Abstract:Carbon nanotube(CNT) possesses excellent electrical, mechanical and thermal properties. Therefore, it has been applied in a variety of...
8
Authors: K.V. Sreenivas Rao, S. Sanman
Chapter 2: Solid State Materials, Alloys, Reiforced and Functional Materials
Abstract:The remarkable high tensile strength and very high aspect ratio of carbon nanotubes make them valuable components for mechanically reinforced...
89