Glass Transition

A simple theory for simple glass

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Science  09 Mar 2018:
Vol. 359, Issue 6380, pp. 1115-1116
DOI: 10.1126/science.359.6380.1115-c

A microscopic image of glass made from a metallic alloy

CREDIT: AN SCHROERS, YALE

Glasses have many important industrial applications, yet understanding the changes that occur over the wide range of time and length scales of the glass transition remains a challenge. Hansen et al. performed simultaneous neutron scattering and dielectric spectroscopy measurements that allowed dynamic observations to be made over an impressive 14 orders of magnitude. Unexpectedly, for van der Waals fluids, they found identical dynamics across this massive time scale at different state points in the phase diagram. This finding dramatically simplifies the theory that describes these fluids, which include technologically important materials such as metallic glasses.

Nat. Commun. 10.1038/s41467-017-02324-3 (2018).

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