Details
| Original language | English |
|---|---|
| Article number | 120414 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 551 |
| Early online date | 1 Oct 2020 |
| Publication status | Published - 1 Jan 2021 |
Abstract
A double cantilever beam technique in air equipped with ultrasound modulation was used to measure the crack velocity v in borate and silicate glasses. In all glasses v and the stress intensity KI followed the empirical correlation v ~ KIn. Indicated by its smallest KI at v = 1 µm s − 1, KI* = 0.27 MPa m0.5, the silicoborate glass containing 70 mol% B2O3 was found most susceptible to stress-corrosion enhanced crack growth. Contrarily, the sodium calcium magnesium silicate glass appeared least susceptible with KI* = 0.57 MPa m0.5. No clear correlation is evident between KI*, reflecting the stress-corrosion susceptibility, and the hydrolytic resistance for all glasses under study, but values of n obtained from the present study and taken from previous literature for 35 glasses tend to decrease with increasing network modifier ion fraction. Energy dissipation during stress-corrosion enhanced crack propagation is assumed to cause this trend.
Keywords
- Alkali and alkaline earth silicate and borate glass, crack growth in air, dcb, stress-corrosion, stress intensity
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Materials Science(all)
- Ceramics and Composites
- Physics and Astronomy(all)
- Condensed Matter Physics
- Materials Science(all)
- Materials Chemistry
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In: Journal of Non-Crystalline Solids, Vol. 551, 120414, 01.01.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Crack growth in borate and silicate glasses
T2 - Stress-corrosion susceptibility and hydrolytic resistance
AU - Waurischk, T.
AU - Müller, R.
AU - Behrens, H.
AU - Deubener, J.
N1 - Funding Information: The authors grateful acknowledge financial support from the Deutsche Forschungsgemeinschaft DFG within the framework programm SPP1594 (grant number MU 963/14–2) and A. Marek, S. Rüster, K. Junicke for sample preparation. Warm thanks to M. Ostermann for the XRF measurements. Also acknowledged is Prevac GmbH for providing crucial support in the conception and construction of the DCB apparatus.
PY - 2021/1/1
Y1 - 2021/1/1
N2 - A double cantilever beam technique in air equipped with ultrasound modulation was used to measure the crack velocity v in borate and silicate glasses. In all glasses v and the stress intensity KI followed the empirical correlation v ~ KIn. Indicated by its smallest KI at v = 1 µm s − 1, KI* = 0.27 MPa m0.5, the silicoborate glass containing 70 mol% B2O3 was found most susceptible to stress-corrosion enhanced crack growth. Contrarily, the sodium calcium magnesium silicate glass appeared least susceptible with KI* = 0.57 MPa m0.5. No clear correlation is evident between KI*, reflecting the stress-corrosion susceptibility, and the hydrolytic resistance for all glasses under study, but values of n obtained from the present study and taken from previous literature for 35 glasses tend to decrease with increasing network modifier ion fraction. Energy dissipation during stress-corrosion enhanced crack propagation is assumed to cause this trend.
AB - A double cantilever beam technique in air equipped with ultrasound modulation was used to measure the crack velocity v in borate and silicate glasses. In all glasses v and the stress intensity KI followed the empirical correlation v ~ KIn. Indicated by its smallest KI at v = 1 µm s − 1, KI* = 0.27 MPa m0.5, the silicoborate glass containing 70 mol% B2O3 was found most susceptible to stress-corrosion enhanced crack growth. Contrarily, the sodium calcium magnesium silicate glass appeared least susceptible with KI* = 0.57 MPa m0.5. No clear correlation is evident between KI*, reflecting the stress-corrosion susceptibility, and the hydrolytic resistance for all glasses under study, but values of n obtained from the present study and taken from previous literature for 35 glasses tend to decrease with increasing network modifier ion fraction. Energy dissipation during stress-corrosion enhanced crack propagation is assumed to cause this trend.
KW - Alkali and alkaline earth silicate and borate glass, crack growth in air, dcb, stress-corrosion, stress intensity
UR - http://www.scopus.com/inward/record.url?scp=85091988688&partnerID=8YFLogxK
U2 - 10.1016/j.jnoncrysol.2020.120414
DO - 10.1016/j.jnoncrysol.2020.120414
M3 - Article
AN - SCOPUS:85091988688
VL - 551
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
SN - 0022-3093
M1 - 120414
ER -