In Vitro Degradation Behaviors of Manganese-Calcium Phosphate Coatings on an Mg-Ca-Zn Alloy

Figure 7

EDS and SEM of samples after being immersed in SBF for 168 hours: phosphate coating obtained from solution containing (a) 0 mol/L Mn²⁺, 0.01 mol/L Mn²⁺, 0.03 mol/L Mn²⁺, 0.05 mol/L Mn²⁺, and 0.07 mol/L Mn²⁺.

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