Modeling Acoustic Effects During Casting Nanocomposites Under Electromagnetic Field

Casting is one of the most cost-effective methods of producing metal matrix nanocomposites. However, it is extremely difficult to disperse nanoparticles uniformly in a metal matrix due to their large surface-to-volume ratio and their low wettability in liquid metal, which cause their agglomeration a...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2014-02, Vol.50 (2), p.289-292
Main Authors: Golak, Slawomir, Przylucki, Roman
Format: Article
Language:English
Subjects:
Acoustic effect
Acoustic waves
Casting
Cross-disciplinary physics: materials science
rheology
Electromagnetics
Exact sciences and technology
Magnetism
magnetohydrodynamics
Materials science
Metals
Nanocomposites
Nanoparticles
Other topics in materials science
Physics
Citations: Items that this one cites
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Summary:Casting is one of the most cost-effective methods of producing metal matrix nanocomposites. However, it is extremely difficult to disperse nanoparticles uniformly in a metal matrix due to their large surface-to-volume ratio and their low wettability in liquid metal, which cause their agglomeration and clustering. This paper presents a model of the process of nanocomposite casting where an alternating electromagnetic field is used to induce a standing acoustic wave in the molten metal. The model requires a coupling of electromagnetic field, metal flow field, and acoustic field. It allows optimization of the parameters of the coil supply so as to produce a cavitation phenomenon in the metal, which breaks up the agglomerations of nanoparticles.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2013.2279273