Figure 3
From: Self-passivating (Re,Al)B2 coatings synthesized by magnetron sputtering

XPS scans of (Re0.74Al0.11)B2. Shown are spectra of the (a) B 1 s, (b) Re 4 f, and (c) Al 2 s transitions after different air exposure durations. The position of the components fitted to the spectra is indicated by drop-lines.