Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/7457
Title: Shape effects on nanoparticle engulfment for metal matrix nanocomposites
Authors: Özsoy, İstemi Barış
Li, Gang
Choi, Hongseok
Zhao, Huijuan
Keywords: Nanoparticle
Particle capture
Solidification
Solid liquid interface
Metal matrix nanocomposites
Issue Date: 2015
Publisher: Elsevier Science Bv
Abstract: Obtaining a uniform dispersion of the nanoparticles and their structural integrity in metal matrix is a prominent obstacle to use the intrinsic properties of metal matrix nanocomposites (MMNCs) to the full extent. In this study, a potential way to overcome the scientific and technical barrier of nanoparticle dispersion in high performance lightweight MMNCs is presented. The goal is to identify the shape and size of Al2O3 nanoparticle for its optimal dispersion in Al matrix. Critical velocity of solidification is calculated numerically for spherical, cylindrical and disk-shaped nanoparticles using an analytical model which incorporates drag force, intermolecular force and inertia effect. The results show that it is possible to reduce the critical solidification velocity for nanoparticle capture by 6 times with proper shape modification. (C) 2015 Elsevier B.V. All rights reserved.
URI: https://doi.org/10.1016/j.jcrysgro.2015.04.025
https://hdl.handle.net/20.500.11851/7457
ISSN: 0022-0248
1873-5002
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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