Implant Material Properties: PEEK (unreinforced)
Mechanical, biological, and corrosion properties of materials used in medical implants. Covers 35 materials across 4 categories: metallic (Ti-6Al-4V ELI/standard/Ti-6Al-7Nb/CP Ti Gr.4, CoCrMo cast/wrought/low-carbon, 316L SS, NiTi Nitinol superelastic/shape-memory, Mg alloys AZ31/WE43, Ta porous, Ti-13Nb-13Zr, Ti-35Nb-7Zr-5Ta/TNZT, Co-Cr-N BioDur), ceramic (HA dense/plasma-spray, beta-TCP, BCP, Y-TZP zirconia, alumina, ZTA), polymer (UHMWPE conventional/XLPE, PEEK/PEEK-OPTIMA, PMMA bone cement, PLLA, PLGA 85:15/50:50, PCL, silicone PDMS, PEEK-30CF), and composite. For each material: elastic modulus (GPa), yield strength (MPa), ultimate tensile strength (MPa), fatigue endurance limit (MPa), elongation (%), Vickers hardness (HV), density (g/cm3), corrosion rate (mm/yr), biocompatibility class (inert/bioactive/bioresorbable), osseointegration potential, MRI compatibility (safe/conditional/unsafe), typical implant applications, wear rate (mm3/million cycles), metal ion release (ug/L), resorption time (months for bioresorbable materials). Sources: ASTM F136/F1472/F75/F799/F1537/F138/F2063/F648/F2026/F451/F1185/F1873/F603/F1295/F67/F3152/F2384/F1713, ISO 5832 series, ISO 6474/13356/13779/13175/13781, Ratner et al. Biomaterials Science 4th Ed. 2020, Park and Lakes Biomaterials 3rd Ed. 2007, Kurtz UHMWPE Handbook 3rd Ed. 2016.
| material | ASTM standard | MRI compatibility | biocompatibility class | density g per cm3 (g/cm3) | elastic modulus GPa (GPa) | elongation pct (%) | fatigue endurance limit MPa (MPa) | hardness HV (HV) | material category | osseointegration | standard | typical applications | ultimate tensile strength MPa (MPa) | yield strength MPa (MPa) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PEEK (unreinforced) | ASTM F2026; ISO 18177 | safe | inert | 1.3 | 3.6 | 30 | 70 | 85 | polymer | no | ASTM F2026-17; ISO 18177:2017; Kurtz and Devine Biomaterials 2007; Ratner et al. 2020 | spinal cage, bone plate, dental abutment | 170 | 100 |
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