Journal
CARBON
Volume 50, Issue 13, Pages 4809-4814Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2012.06.005
Keywords
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Funding
- Priority Research Centers Program through the National Research Foundation of Korea(NRF)
- Ministry of Education, Science and Technology [2011-0031407]
- AOARD [114008]
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The precipitation hardening behavior of CNT/Al-Cu composites was investigated by characterization of microstructure and mechanical properties after aging heat treatment. It was found that CNTs accelerated the precipitation hardening behavior of CNT/Al-Cu composites due to the generation of excess dislocations. The CNT/Al-Cu composites; after aging heat treatment, show significant increase of yield and ultimate tensile strength compared to those values for the Al-Cu matrix; the composites also show an increase rate similar to that of CNT/Al-Cu composites without aging heat treatment. It was thought that the GMT/Al-Cu composites were strengthened by both the load transfer from the Al-Cu matrix to the CNTs and by precipitation hardening of the Al-Cu matrix. (C) 2012 Elsevier Ltd. All rights reserved.
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