Properties of electrostatically-driven granular medium: Phase transitions and charge transfer

Aranson, I. S.; Blair, D.; Kalatsky, V. A.; Crabtree, G. W.; Kwok, W.-K.; Vinokur, V. M.; Welp, U.
January 2000
AIP Conference Proceedings;2000, Vol. 504 Issue 1, p723
Academic Journal
The experimental and theoretical study of electrostatically driven granular material are reported. It is shown that the charged granular medium undergoes a hysteretic first order phase transition from the immobile condensed state (granular solid) to a fluidized dilated state (granular gas) with a changing applied electric field. In addition a spontaneous precipitation of dense clusters from the gas phase and subsequent coarsening-coagulation of these clusters is observed. Molecular dynamics simulations shows qualitative agreement with experimental results. © 2000 American Institute of Physics.


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