Review Article
A Review of Additive Mixed-Electric Discharge Machining: Current Status and Future Perspectives for Surface Modification of Biomedical Implants
Table 4
FDA HA coating requirement [
67].
| Crystallinity | Phase purity | CaP ratio | Density | Heavy metals | Tensile strength | Shear strength |
| Min. 62% | Min. 95% | 1.67–1.76 | 2.98 g/cm3 | <50 ppm | >50.8 MPa | >22 |
|
|