Research Article
XPS and GDOES Characterization of Porous Coating Enriched with Copper and Calcium Obtained on Tantalum via Plasma Electrolytic Oxidation
Figure 2
XPS survey spectra of top 10 nm of tantalum surface after PEO treatment at 450 V in electrolyte containing Ca(NO3)2 and Cu(NO3)2, with maximum binding energy 1150 eV (a) and 260 eV (b).
| (a) |
| (b) |