Atomistic simulation of aging and rejuvenation in glasses
Atomistic simulation of aging and rejuvenation in glasses
Slow structural relaxation (“aging”) observed in many atomic, molecular, and polymeric glasses substantially alters their stress-strain relations and can produce a distinctive yield point. Using Monte Carlo simulation for a binary Lennard-Jones mixture, we have observed these phenomena and their cooling-rate dependences for the first time in an atomistic model system. We also observe that aging effects can be reversed by plastic deformation (“rejuvenation”), whereby the system is expelled from the vicinity of deep minima in its potential energy surface.
1471-1474
Utz, Marcel
c84ed64c-9e89-4051-af39-d401e423891b
Debenedetti, Pablo
93826fbe-016f-42e9-bcb0-12196c6ec29d
Stillinger, Frank
d78e7874-c268-428c-a257-09ef68352995
14 February 2000
Utz, Marcel
c84ed64c-9e89-4051-af39-d401e423891b
Debenedetti, Pablo
93826fbe-016f-42e9-bcb0-12196c6ec29d
Stillinger, Frank
d78e7874-c268-428c-a257-09ef68352995
Utz, Marcel, Debenedetti, Pablo and Stillinger, Frank
(2000)
Atomistic simulation of aging and rejuvenation in glasses.
Physical Review Letters, 84 (7), .
(doi:10.1103/PhysRevLett.84.1471).
Abstract
Slow structural relaxation (“aging”) observed in many atomic, molecular, and polymeric glasses substantially alters their stress-strain relations and can produce a distinctive yield point. Using Monte Carlo simulation for a binary Lennard-Jones mixture, we have observed these phenomena and their cooling-rate dependences for the first time in an atomistic model system. We also observe that aging effects can be reversed by plastic deformation (“rejuvenation”), whereby the system is expelled from the vicinity of deep minima in its potential energy surface.
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Published date: 14 February 2000
Organisations:
Chemistry, Faculty of Natural and Environmental Sciences, Magnetic Resonance
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Local EPrints ID: 355587
URI: http://eprints.soton.ac.uk/id/eprint/355587
PURE UUID: 4f78bf1f-cb0c-4313-9fac-d48c9e9f274c
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Date deposited: 21 Nov 2013 14:24
Last modified: 15 Mar 2024 03:44
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Author:
Pablo Debenedetti
Author:
Frank Stillinger
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