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Metals 2019, 9(3), 330; https://doi.org/10.3390/met9030330

Advanced Metal Matrix Nanocomposites

1
Department of Mechanical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
2
Department of Mechanical Engineering, San Diego State University, San Diego, CA 92182, USA
3
Department of Mechanical Engineering, University of Nevada Reno, Reno, NV 89501, USA
4
Magnesium Innovation Centre, Helmholtz Zentrum Geesthacht, 21502 Geesthacht, Germany
5
Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Palacky University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
6
Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore
*
Authors to whom correspondence should be addressed.
Received: 24 January 2019 / Revised: 2 March 2019 / Accepted: 9 March 2019 / Published: 15 March 2019
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Abstract

Lightweight high-strength metal matrix nano-composites (MMNCs) can be used in a wide variety of applications, e.g., aerospace, automotive, and biomedical engineering, owing to their sustainability, increased specific strength/stiffness, enhanced elevated temperature strength, improved wear, or corrosion resistance. A metallic matrix, commonly comprising of light aluminum or magnesium alloys, can be significantly strengthened even by very low weight fractions (~1 wt%) of well-dispersed nanoparticles. This review discusses the recent advancements in the fabrication of metal matrix nanocomposites starting with manufacturing routes and different nanoparticles, intricacies of the underlying physics, and the mechanisms of particle dispersion in a particle-metal composite system. Thereafter, the microstructural influences of the nanoparticles on the composite system are outlined and the theory of the strengthening mechanisms is also explained. Finally, microstructural, mechanical, and tribological properties of the selected MMNCs are discussed as well. View Full-Text
Keywords: metal matrix nanocomposites; ultrasonication; strength; dispersion metal matrix nanocomposites; ultrasonication; strength; dispersion
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Malaki, M.; Xu, W.; Kasar, A.K.; Menezes, P.L.; Dieringa, H.; Varma, R.S.; Gupta, M. Advanced Metal Matrix Nanocomposites. Metals 2019, 9, 330.

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