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journal article Mar 18, 2022

Predicting nonlinear physical aging of glasses from equilibrium relaxation via the material time

Birte Riechers ORCID Lisa A. Roed ORCID Saeed Mehri ORCID Trond S. Ingebrigtsen ORCID Tina Hecksher ORCID Jeppe C. Dyre ORCID Kristine Niss ORCID
Science Advances Vol. 8 No. 11 · American Association for the Advancement of Science (AAAS)
View at Publisher Save 10.1126/sciadv.abl9809
Abstract
The noncrystalline glassy state of matter plays a role in virtually all fields of materials science and offers complementary properties to those of the crystalline counterpart. The caveat of the glassy state is that it is out of equilibrium and therefore exhibits physical aging, i.e., material properties change over time. For half a century, the physical aging of glasses has been known to be described well by the material-time concept, although the existence of a material time has never been directly validated. We do this here by successfully predicting the aging of the molecular glass 4-vinyl-1,3-dioxolan-2-one from its linear relaxation behavior. This establishes the defining property of the material time. Via the fluctuation-dissipation theorem, our results imply that physical aging can be predicted from thermal-equilibrium fluctuation data, which is confirmed by computer simulations of a binary liquid mixture.
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Cited By
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Relaxation Dynamics of Biomass-Derived Copolymers With Promising Gas-Barrier Properties

Alejandro Sanz, Amelia Linares · 2022

Frontiers in Chemistry
Metrics
57
Citations
70
References
Details
Published
Mar 18, 2022
Vol/Issue
8(11)
Authors
B
Birte Riechers

“Glass and Time”, IMFUFA, Department of Science and Environment, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark.

L
Lisa A. Roed

“Glass and Time”, IMFUFA, Department of Science and Environment, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark.

S
Saeed Mehri

“Glass and Time”, IMFUFA, Department of Science and Environment, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark.

T
Trond S. Ingebrigtsen

“Glass and Time”, IMFUFA, Department of Science and Environment, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark.

T
Tina Hecksher

“Glass and Time”, IMFUFA, Department of Science and Environment, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark.

J
Jeppe C. Dyre

“Glass and Time”, IMFUFA, Department of Science and Environment, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark.

K
Kristine Niss

“Glass and Time”, IMFUFA, Department of Science and Environment, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark.

Cite This Article
Birte Riechers, Lisa A. Roed, Saeed Mehri, et al. (2022). Predicting nonlinear physical aging of glasses from equilibrium relaxation via the material time. Science Advances, 8(11). https://doi.org/10.1126/sciadv.abl9809
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