XPS and GDOES Characterization of Porous Coating Enriched with Copper and Calcium Obtained on Tantalum via Plasma Electrolytic Oxidation

Figure 3

XPS spectra of carbon (C 1s), oxygen (O 1s), tantalum (Ta 4f, Ta 3d), calcium (Ca 2p), copper (Cu 2p, Cu LMM), and phosphorus (P 2p).