Fig. 6: ToF-SIMS analysis of SBNA1 and SBNA4 altered glass coupons.
From: On the effect of Al on alumino-borosilicate glass chemical durability
Experiments were conducted for 1 month in a Si saturated solution at 90 °C, followed by 1 day in H218O at room temperature. a, b B, Na, and Al profiles recorded in negative mode and normalized to Si. c, d 29Si/28Si profiles compared to the natural isotopic abundance (0.05) indicated as dotted line. e, f 18O/16O profiles (red squares) compared to that expected if the porosity left by the release of B and Na is saturated with 18O labelled water (blue line). 18O/16O at natural abundance (0.002) is indicated as the red dotted line.
