Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 1859-1862 |
| Seitenumfang | 4 |
| Fachzeitschrift | Journal of non-crystalline solids |
| Jahrgang | 356 |
| Ausgabenummer | 35-36 |
| Frühes Online-Datum | 24 Juli 2010 |
| Publikationsstatus | Veröffentlicht - 1 Aug. 2010 |
Abstract
Isothermal relaxation experiments were conducted on a mildly densified alkali borosilicate glass with an initial fictive pressure of 500 MPa. Annealing under ambient pressure at various temperatures below the glass transition leads to a gradually decreasing fictive pressure, monitored by ex situ density measurements. Relaxation times are extracted from the temporal evolution of the corresponding reaction coordinate, and an activation energy of 761 ± 40 kJ/mol is found. The timescale of pressure relaxation is similar to that of shear relaxation, but the pressure-dependence of viscosity must be considered for this assessment.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Werkstoffwissenschaften (insg.)
- Keramische und Verbundwerkstoffe
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
in: Journal of non-crystalline solids, Jahrgang 356, Nr. 35-36, 01.08.2010, S. 1859-1862.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Kinetics of pressure relaxation in a compressed alkali borosilicate glass
AU - Wondraczek, L.
AU - Krolikowski, S.
AU - Behrens, H.
N1 - Funding Information: Financial support by the Deutsche Forschungsgemeinschaft (DFG) under grant no. WO 1220/3-1 is gratefully acknowledged.
PY - 2010/8/1
Y1 - 2010/8/1
N2 - Isothermal relaxation experiments were conducted on a mildly densified alkali borosilicate glass with an initial fictive pressure of 500 MPa. Annealing under ambient pressure at various temperatures below the glass transition leads to a gradually decreasing fictive pressure, monitored by ex situ density measurements. Relaxation times are extracted from the temporal evolution of the corresponding reaction coordinate, and an activation energy of 761 ± 40 kJ/mol is found. The timescale of pressure relaxation is similar to that of shear relaxation, but the pressure-dependence of viscosity must be considered for this assessment.
AB - Isothermal relaxation experiments were conducted on a mildly densified alkali borosilicate glass with an initial fictive pressure of 500 MPa. Annealing under ambient pressure at various temperatures below the glass transition leads to a gradually decreasing fictive pressure, monitored by ex situ density measurements. Relaxation times are extracted from the temporal evolution of the corresponding reaction coordinate, and an activation energy of 761 ± 40 kJ/mol is found. The timescale of pressure relaxation is similar to that of shear relaxation, but the pressure-dependence of viscosity must be considered for this assessment.
KW - Pressure-effects
KW - Relaxation
KW - Viscosity
UR - http://www.scopus.com/inward/record.url?scp=77957904139&partnerID=8YFLogxK
U2 - 10.1016/j.jnoncrysol.2010.06.009
DO - 10.1016/j.jnoncrysol.2010.06.009
M3 - Article
AN - SCOPUS:77957904139
VL - 356
SP - 1859
EP - 1862
JO - Journal of non-crystalline solids
JF - Journal of non-crystalline solids
SN - 0022-3093
IS - 35-36
ER -