Cooling rate and stress relaxation in silica melts and glasses via microsecond molecular dyanmics
Journal Article
·
· Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
We have conducted extremely long molecular dynamics simulations of glasses to microsecond times, which close the gap between experimental and atomistic simulation time scales by two to three orders of magnitude. The static, thermal, and structural properties of silica glass are reported for glass cooling rates down to 5×109 K/s and viscoelastic response in silica melts and glasses are studied over nine decades of time. We finally present results from relaxation of hydrostatic compressive stress in silica and show that time-temperature superposition holds in these systems for temperatures from 3500 to 1000 K.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1235295
- Alternate ID(s):
- OSTI ID: 1198729
- Report Number(s):
- SAND-2015-7366J; 603546
- Journal Information:
- Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, Vol. 92, Issue 01; ISSN 1539-3755
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 66 works
Citation information provided by
Web of Science
Web of Science
Similar Records
Microsecond molecular dynamics simulations of stress relaxation and slow quench in silica melts and glasses.
Molecular dynamics simulation of the approach and withdrawal of a model crystalline metal to a silica glass surface
Molecular dynamics simulation of elevated temperature interfacial behavior between silica glass and a model crystal
Conference
·
Sat Mar 01 00:00:00 EST 2014
·
OSTI ID:1235295
Molecular dynamics simulation of the approach and withdrawal of a model crystalline metal to a silica glass surface
Journal Article
·
Thu Dec 01 00:00:00 EST 1994
· Journal of Chemical Physics; (United States)
·
OSTI ID:1235295
Molecular dynamics simulation of elevated temperature interfacial behavior between silica glass and a model crystal
Journal Article
·
Mon Jul 01 00:00:00 EDT 1996
· Journal of Chemical Physics
·
OSTI ID:1235295