Enhanced microhardness of nanocrystalline carbon nanotube-reinforced Cu composite using planar shock-wave compaction
Planar shock-wave compaction (SWC), at a peak pressure of similar to 15 GPa, was used to fabricate 90% dense carbon nanotube-reinforced-Cu composite (SWC-CNT/Cu). Transmission electron microscopy analysis of SWC-CNT/Cu revealed retention of nanoscale size Cu grains, and the presence of shear bands and homogeneous dispersion of CNTs in the Cu matrix. These findings explain the significantly enhanced hardness observed. A Vickers hardness and nanoindentation test for SWC-CNT/Cu indicated enhanced microhardness of 1190 and 1794 MPa, respectively, proving the efficiency of the SWC technique. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Issue Date
- 2009-11
- Language
- English
- Article Type
- Article
- Keywords
DUCTILE POROUS MATERIALS; DYNAMIC COMPACTION; POWDERS
- Citation
SCRIPTA MATERIALIA, v.61, pp.871 - 874
- ISSN
- 1359-6462
- Appears in Collection
- MS-Journal Papers(저널논문)
- Files in This Item
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