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

Conference · Thu Oct 14 00:00:00 EDT 1999

OSTI ID:750538

Aranson, I S; Kalatsky, V A; Crabtree, G W; Kwok, W -K; Vinokur, V M; Welp, U

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.

• Research Organization: Argonne National Lab., IL (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 750538
• Report Number(s): ANL/MSD/CP-100191; TRN: AH200019%%76
• Resource Relation: Conference: STAIF-2000, Albuquerque, NM (US), 01/30/2000--02/03/2000; Other Information: PBD: 14 Oct 1999
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
GRANULAR MATERIALS
PHASE TRANSFORMATIONS
ELECTROSTATICS
FLUIDIZATION
ELECTRIC CHARGES
CHARGE TRANSPORT
SOLID CLUSTERS
PRECIPITATION
HYSTERESIS