Table 6.
Mechanical characteristics of natural bone, Mg alloys and other common bioactive materials (Wu et al. 2014; Li et al. 2016)
| Materials | Density (g/cm3) | Modulus (GPa) | Compressive yield strength (MPa) | Fracture toughness (MPa m1/2) |
|---|---|---|---|---|
| Cortical bone | 1.8–2.1 | 7–20 | 130–180 | 3–6 |
| Cancellous bone | 1–1.4 | 0.01–3 | 2–12 | NA |
| Mg alloys | 1.79–2.0 | 35–45 | 100–200 | 15–35 |
| Ti alloys | 4.2–4.5 | 110–120 | 750–1110 | 55–115 |
| Co alloys | 8.3–9.2 | 230 | 450–1000 | NA |
| 316 L steel | 8.0 | 193 | 190 | 50–200 |
| Tantalum | 16.7 | 186–191 | NA | NA |
| HAp | 3.1 | 80–110 | 0.03–0.3 | 0.6–1.0 |
| TCP | NA | 24–39 | 2–3.5 | 0.3–1.0 |
| PEEK | 1.29 | 3–4 | 95 | NA |
| PLGA | 1.2e1.3 | 1.4–2.8 | 41.4–55.2 | NA |
NA not available