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Issue 41, 2012
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Millifluidic production of metallic microparticles

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Abstract

We use infrared thermography to monitor the cooling kinetics of a millifluidic diphasic flow comprising a fusible alloy and silicone oil; the flow is generated at high temperature and then reaches a cooler environment. Above the solidification point of the alloy, the flow pattern is analogous to that of immiscible fluids with a transition from drops to jets depending on the flow conditions. Below the solidification temperature of the alloy, the flow may become unstable and clog depending on the amount of metal drops present in the diphasic flow. At low concentration of drops in the flow, the production of solidified monodisperse particles becomes continuous and we identify some parameters that permit us to tune their geometry, either spheres, ellipsoids, or rods.

Graphical abstract: Millifluidic production of metallic microparticles

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Publication details

The article was received on 21 Apr 2012, accepted on 27 Jun 2012 and first published on 23 Jul 2012


Article type: Paper
DOI: 10.1039/C2SM25933H
Soft Matter, 2012,8, 10704-10711

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    Millifluidic production of metallic microparticles

    R. Tadmouri, M. Romano, L. Guillemot, O. Mondain-Monval, R. Wunenburger and J. Leng, Soft Matter, 2012, 8, 10704
    DOI: 10.1039/C2SM25933H

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