Fig. 8: Comparison of sodium leaching depth and glass surface structure with and without NaCl saturation. | npj Materials Degradation

Fig. 8: Comparison of sodium leaching depth and glass surface structure with and without NaCl saturation.

From: Transport phenomena during aqueous corrosion of silicate glass—New insights from theoretical analysis of diffusion with a moving boundary

Fig. 8

a Summarized sodium leaching data for SLS treated in a pH 1 solution of nitric acid at 90 °C for various treatment time. The error bars represent standard error, calculated from at least 3 repeat measurements. The full XPS data set can be found in SI 5. Note that for some data points, the error bars are so narrow as to not be visible. Both data sets are fit with an arbitrary power law, shown as a dotted line, demonstrating that they are poorly described by t1/2. The inset shows the average depth profile for both experiment sets at a single time point (60 days), further reinforcing that they are statistically different. b AFM-IR spectra for pristine SLS, and for a sample treated for 120 days in a solution either saturated with NaCl or with no NaCl added. These plots show that though their surface structure is the same, their sodium leaching behavior is different.

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