1999 Volume 107 Issue 1250 Pages 983-985
The effect of changing the solution pH inside indentation-induced microcracks on the post-indentation crack-growth behavior was investigated in glass. Buffer solution was used for crack growth experiments in order to suppress the pH change inside the microcracks and then comparison of crack growth behavior was made between the buffered and unbuffered solutions. It was found that the pH change inside the microcracks occurs depending on the initial pH of the solution and that the bonding state at the crack tip region changes depending on the pH change inside the microcracks. The obtained results also showed that the ratio of surface area/solution volume, S/V affects the pH change inside microcracks, which induced the change in the stress corrosion limit, Kscc depending on the pH.
