Non-linear mechanical properties and dynamic response of silicon nitride bioceramic

Natural spinal tissues have unique dynamic properties and it is crucial to investigate the full response of implants related biomedical materials ensure compatibility with host tissue. Silicon nitride a promising bioceramic for implants. In this study, mechanical silicon were comprehensively evaluated using novel efficient testing methods, at both material structural level. The correlation between porosity was investigated results showed that Young's modulus compressive strength decreased non-linearly as increased. Both (100.35±3.39MPa) fracture toughness (1.06±0.06MPa?m1/2) porous samples (~70% porosity) can be considered sufficient load bearing purposes substitute trabecular bone. Moreover, from drop tower test average ultimate scaffolds under an impact loading significantly lower than quasi-static compression. Nevertheless, value still comparable Regarding damping capacity, free damped vibration tests cantilever beams beam has higher ratio (0.17%±0.01%) zirconia (0.13%±0.01%), which indicates ceramics similar moduli different energy dissipating capacities. However, dense low dissipation, substantially natural tissues. Overall, possesses high stiffness, altering one option tailor its towards those bone, however, more effort required increase if desired trait.