Field-Driven Ordering of Coated Particle Films
Open to Ph.D.Particle spacing in a coated film is usually whatever the flow leaves behind. We treat it as a design variable: a magnetic field puts energy back into the wet layer so particles find their own spacing while the substrate keeps moving.
- Build an overdamped discrete-element model of particles under magnetic, capillary, and viscous forces, and run it against blade-coating experiments between a pair of electromagnets.
- Pin down the regime map in the magneto-thickening number Mt, the magnetic Bond number Boₘ, and the thickening index Γ that decides when field-assisted ordering actually works.
- Carry the result from a batch demonstration to a continuously moving substrate, for optical films and electrodes whose performance depends on how evenly the particles sit.