Levich Institute Seminar Announcement, 05/10/2011
Steinman Hall, Room #312
(Chemical Engineering Conference Room)
Professor Sharon Glotzer
University of Michigan
Department of Chemical Engineering
"From Aristotle to Onsager and Beyond: Packing and Assembling Tetrahedra and Other Shapes "
The packing of shapes has interested humankind for millennia. We investigate the packing of hard, regular tetrahedra using computer simulation and show that entropy alone can order them into unique structures both simple and unexpectedly complex, including a dodecagonal quasicrystal. These structures can be compressed to packing densities much greater than that of spheres, and as high as 85.63%, the current world record. We Investigate the stability and robustness of the quasicrystal phase, and explore adding interactions to nanoscale tetrahedra, which promotes their assembly into sheets, wires, helices, and other complex structures. We also discuss general design rules for soft matter quasicrystals and other complex structures.
BRIEF ACADEMIC/EMPLOYMENT HISTORY
RECENT RESEARCH INTERESTS:
Assembly of nanoscale systems; supercooled and metastable liquids and complex fluids, colloids, and complex fluids; biomimetic materials design; computer simulation.