Table 5 EDX investigation results of the accelerated degradation samples
Degradation Period | C (atom-%) | O (atom-%) | Ca (atom-%) | P (atom-%) |
|---|---|---|---|---|
Control | 56.87 | 40.83 | 1.43 | 0.87 |
24 h | 58.85 | 38.79 | 1.56 | 0.80 |
72 h | 56.31 | 41.15 | 1.58 | 0.95 |
1 week | 56.61 | 40.57 | 1.88 | 0.94 |
2 weeks | 56.05 | 41.57 | 1.49 | 0.88 |
3 weeks | 56.36 | 40.98 | 1.68 | 0.97 |
4 weeks | 56.07 | 41.35 | 1.62 | 0.96 |