Table 1.
The element composition (%) of CPS and Sr-CPS sample.
| Element composition (%) | O | P | Ca | Si | Sr |
|---|---|---|---|---|---|
| CPS | 53.6 | 19.5 | 20.4 | 5.8 | – |
| Sr-5 | 55.9 | 18.3 | 18.9 | 5.3 | 1.6 |
| Sr-10 | 55.3 | 18.3 | 18.1 | 5.7 | 3.3 |
| Sr-20 | 56.7 | 18.1 | 14.7 | 4.5 | 6.0 |
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