Theory of pattern-formation of metallic microparticles in poorly conducting liquid

Details Theory of pattern-formation of metallic microparticles in poorly conducting liquid Theory of pattern-formation of metallic microparticles in poorly conducting liquid

2003-06-25

arxiv.org/abs/cond-mat/0306657v1

Physics

Condensed Matter

Materials Science

4 pages, 5 figures, submitted to Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.92.234301

We develop continuum theory of self-assembly and pattern formation in metallic microparticles immersed in a poorly conducting liquid in DC electric field. The theory is formulated in terms of two conservation laws for the densities of immobile particles (precipitate) and bouncing particles (gas) coupled to the Navier-Stokes equation for the liquid. This theory successfully reproduces correct topology of the phase diagram and primary patterns observed in the experiment [Sapozhnikov et al, Phys. Rev. Lett. v. 90, 114301 (2003)]: static crystals and honeycombs and dynamic pulsating rings and rotating multi-petal vortices.

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