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Characterization of Al/SiC Nanocomposite Prepared by Mechanical Alloying Method

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Abstract:

In this research work, a high-energy ball mill has been applied to prepare an Al/SiC nanocomposite. The formation mechanism of the nanocomposite was investigated. This nanocomposite contained the nanocrystalline characteristics. Crystallite size, lattice strain and particle size of the nanocomposite as a function of milling time were determined. SEM micrographs showed that the nanocomposite powders agglomerated after milling. The particle size analysis confirmed the agglomeration of the nanocomposite particles. TEM observations showed that the SiC particles were in the nanometer size and these particles embedded in the Al matrix, and the nanocomposite produced in the final stage of mechanical alloying. In addition, a simple model checked for the refinement of the crystallite and the particle size of nanocomposite.

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Periodical:

Materials Science Forum (Volume 553)

Pages:

257-265

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.553.257

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Online since:

August 2007

Authors:

Ali Shokuhfar, M.R. Dashtbayazi, M.R. Alinejad, Tolou Shokuhfar

Keywords:

Crystallite Size, Lattice Strain, Mechanical Alloying (MA), Metal Matrix Nanocomposite , Particle Size

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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