Journal
SCRIPTA MATERIALIA
Volume 68, Issue 9, Pages 711-714Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2013.01.013
Keywords
Ball mill; Rolling; Metal matrix composites; Carbon nanotubes; Work hardening
Categories
Funding
- NRF
- MEST [2009-0086408]
- National Research Foundation of Korea [2009-0086408] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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.
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