Effects of acid leaching treatment of soda lime silicate glass on crack initiation and fracture
Research output: Contribution to journal › Article › Research › peer-review
Standard
In: Journal of the American Ceramic Society, Vol. 104.2021, No. 9, 09.2021, p. 4550-4558.
Research output: Contribution to journal › Article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex - Download
}
RIS (suitable for import to EndNote) - Download
TY - JOUR
T1 - Effects of acid leaching treatment of soda lime silicate glass on crack initiation and fracture
AU - Sheth, Nisha
AU - Greenly, Carl
AU - Bermejo, Raul
AU - Mauro, John C.
AU - Pantano, C.G.
AU - Kim, Seong H.
N1 - Publisher Copyright: © 2021 The American Ceramic Society
PY - 2021/9
Y1 - 2021/9
N2 - Water or acid soaking surface treatments have been shown to increase the mechanical strength of soda-lime silicate (SLS) glasses. This increase in strength has traditionally been attributed to effects related to residual stress or changes in fracture resistance. In this work, we report experimental data that cannot be explained based on the existing knowledge of glass surface mechanics. In dry environments, annealed and acid-leached SLS surfaces have comparable crack initiation stress and fracture stress as measured by Hertzian indentation and biaxial bending tests, respectively. Yet, in the presence of humidity, acid-leached surfaces have higher failure stress than the annealed surfaces. This apparent enhancement in the crack resistance of the acid-leached surface of SLS glass in humid environments supports the hypothesis that acid-leached surface chemistry can lower the transport kinetics of molecular water to critical flaws.
AB - Water or acid soaking surface treatments have been shown to increase the mechanical strength of soda-lime silicate (SLS) glasses. This increase in strength has traditionally been attributed to effects related to residual stress or changes in fracture resistance. In this work, we report experimental data that cannot be explained based on the existing knowledge of glass surface mechanics. In dry environments, annealed and acid-leached SLS surfaces have comparable crack initiation stress and fracture stress as measured by Hertzian indentation and biaxial bending tests, respectively. Yet, in the presence of humidity, acid-leached surfaces have higher failure stress than the annealed surfaces. This apparent enhancement in the crack resistance of the acid-leached surface of SLS glass in humid environments supports the hypothesis that acid-leached surface chemistry can lower the transport kinetics of molecular water to critical flaws.
UR - http://www.scopus.com/inward/record.url?scp=85106740162&partnerID=8YFLogxK
U2 - 10.1111/jace.17840
DO - 10.1111/jace.17840
M3 - Article
VL - 104.2021
SP - 4550
EP - 4558
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 9
ER -