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Title: Using integrated hybrid (Al+CNT) reinforcement to simultaneously enhance strength and ductility of magnesium
Authors: Habibi, M.K.
Paramsothy, M. 
Hamouda, A.M.S.
Gupta, M. 
Keywords: A. Carbon nanotubes
A. Hybrid composites
A. Metal-matrix composites (MMCs)
B. Mechanical properties
E. Powder processing
Issue Date: 22-Mar-2011
Citation: Habibi, M.K., Paramsothy, M., Hamouda, A.M.S., Gupta, M. (2011-03-22). Using integrated hybrid (Al+CNT) reinforcement to simultaneously enhance strength and ductility of magnesium. Composites Science and Technology 71 (5) : 734-741. ScholarBank@NUS Repository.
Abstract: Magnesium nano-composites containing hybrid aluminium-carbon nanotube (Al-CNT) reinforcement were synthesized through powder metallurgy route using microwave assisted rapid sintering technique followed by hot extrusion. Compared to monolithic Mg, microstructural characterization revealed reasonably uniform distribution of Al-CNT particles in the matrix and reduction in average matrix grain size in the case of hybrid nano-composites. Compared to monolithic Mg, the Mg/Al-CNT nano-composites exhibited higher elastic modulus, strength and failure strain up to 1.00. wt.% Al content. The CNT content was kept constant at 0.18. wt.%. Among the different nano-composite formulations, the Mg/1.00Al-0.18CNT nano-composite exhibited the best improvement in elastic modulus (E), tensile yield strength (0.2%YS), ultimate tensile strength (UTS) and failure strain (up to +3.6%, +38%, +36% and +42%, respectively) compared to pure Mg. The effect of hybrid Al-CNT reinforcement integration on the enhancement of mechanical properties of Mg is investigated in this paper. © 2011 Elsevier Ltd.
Source Title: Composites Science and Technology
ISSN: 02663538
DOI: 10.1016/j.compscitech.2011.01.021
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