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Title: Fast Crystals and Strong Glasses

This talk describes new results on model colloid systems that provide insight into the behavior of fundamental problems in colloid physics, and more generally, for other materials as well. By visualimore »zing the nucleation and growth of colloid crystals, we find that the incipient crystallites are much more disordered than expected, leading to a larger diversity of crystal morphologies. When the entropic contribution of these diverse morphologies is included in the free energy, we are able to describe the behavior very well, and can predict the nucleation rate surprisingly accurately. The talk also describes the glass transition in deformable colloidal particles, and will show that when the internal elasticity of the particles is included, the colloidal glass transition mimics that of molecular glass formers much more completely. These results also suggest that the elasticity at the scale of the fundamental unit, either colloid particle or molecule, determines the nature of the glass transition, as described by the "fragility."« less
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Title: Fast Crystals and Strong Glasses
Authors:
Publication Date: 2009-11-04
OSTI Identifier: 1007261
DOE Contract Number: ACO2-06CH11357
Resource Type: Multimedia
Resource Relation: Conference: APS Colloquium Series, Advanced Photon Source (APS) at Argonne National Laboratory, Argonne, Illinois (United States), presented on November 04, 2009
Research Org: ANL (Argonne National Laboratory (ANL), Argonne, IL (United States))
Sponsoring Org: USDOE Office of Science (SC)
Subject: 36 MATERIALS SCIENCE
Country of Publication: United States
Language: English
Run Time: 0:51:57
System Entry Date: 2016-01-27