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Synthesis of spherical particles with a targeted size distribution

Abstract : It is often desirable to produce spherical particles with a targeted size distribution. In this paper, we present an experimental setup able to generate droplets of a liquid that will further solidify into solid particles upon cooling. We show that a controlled mechanical vibration applied to a jet emanating from a circular orifice can lead to a monodisperse distribution with a mean size of the order of the orifice diameter (ranging between 50 and 250 µm in our experiments). By appropriately tuning the piezo-ceramic electrical stimulation, we show how to generate a controlled particle size distribution, with dmax/dmin of the order of 1.3. This size ratio is favorable to elaborate dense granular beds. The experiments are conducted with different materials.
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https://hal.archives-ouvertes.fr/hal-01813375
Contributor : Fatima Lillouch <>
Submitted on : Tuesday, June 12, 2018 - 11:59:45 AM
Last modification on : Thursday, March 19, 2020 - 12:06:01 PM

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  • HAL Id : hal-01813375, version 1

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Andrea Valentini, Sylvain Martin, Olivier Bonnefoy. Synthesis of spherical particles with a targeted size distribution. 8th World Congress on Particle Technology (WCPT 8), Particulate Solid Research, Inc. (PSRI); AIChE (American Institute of Chemical Engineers), Apr 2018, Orlando, United States. paper 134d. ⟨hal-01813375⟩

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