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arXiv · 1805.06409

Nanoparticles growth in dynamic plasma

V. Vekselman·M. N. Shneider·Y. Raitses
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Abstract

Coagulation growth kinetics of nanoparticles in plasma is affected by inter-particle electrostatic forces due to charging phenomenon. In stationary plasmas, unipolar charging of particles results in retardation of particles growth and may result in limitation on a particle size. We demonstrate opposite effect of enhanced particles growth in atmospheric pressure non-stationary arc discharge. Modeling of the nanoparticles growth kinetics revealed the formation of bipolar charge distribution. As a result, reversed (attractive) Coulomb forces promote formation of micrometer size particles in a millisecond time scale as observed in experiment.

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V. Vekselman, M. N. Shneider, Y. Raitses. 2019-06-03. Nanoparticles growth in dynamic plasma. https://doi.org/10.1103/physreve.99.063205

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