2008 NSTI Nanotechnology Conference and Trade Show - Nanotech 2008 - 11th Annual

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TechConnect Summit
Clean Technology 2008

Flow of concentrated, nanoparticle suspensions: Multiscale modeling for Manufacturing Process Design

P.R. Schunk, J.B. Lechman
Sandia National Laboratories, US

nanoparticles, suspension, manufacturing

Nanoparticles are now more than ever being used to tailor materials function and performance in differentiating technologies because of their profound effect on thermo-physical, mechanical and optical properties. The most feasible way to disperse particles in a bulk material or control their packing at a substrate is through fluidization in a carrier that can be processed with well-known techniques (e.g. spin, drip and spray coating, fiber drawing, casting followed by solidification through solvent evaporation/drying/curing/sintering). In this presentation we address a plethora of experimental and modeling challenges which must be met to produce a predictive capability for the stability and rheological response of nanoparticle suspensions. We demonstrate modeling activities at three scales: molecular scale, colloidal scale, and macroscopic continuum scale. At each scale we address the key underpinning issues and the expected outcome. We also address the challenges we face in coupling across all scales.

Nanotech 2008 Conference Program Abstract